diff --git a/contract/__manifest__.py b/contract/__manifest__.py
index 288531b91..723fafb89 100644
--- a/contract/__manifest__.py
+++ b/contract/__manifest__.py
@@ -11,7 +11,7 @@
 
 {
     "name": "Recurring - Contracts Management",
-    "version": "13.0.2.0.0",
+    "version": "13.0.2.2.1",
     "category": "Contract Management",
     "license": "AGPL-3",
     "author": "Tecnativa, ACSONE SA/NV, Odoo Community Association (OCA)",
diff --git a/contract/data/mail_message_subtype.xml b/contract/data/mail_message_subtype.xml
index f9fcbfc9a..e3d73cbaa 100644
--- a/contract/data/mail_message_subtype.xml
+++ b/contract/data/mail_message_subtype.xml
@@ -4,4 +4,12 @@
         <field name="name">Invoice created</field>
         <field name="res_model">contract.contract</field>
     </record>
+    <record
+        id="mail_message_subtype_contract_modification"
+        model="mail.message.subtype"
+    >
+        <field name="name">Contract modifications</field>
+        <field name="res_model">contract.contract</field>
+        <field name="default" eval="False" />
+    </record>
 </odoo>
diff --git a/contract/data/mail_template.xml b/contract/data/mail_template.xml
index f9c49b1ba..c6356ede6 100644
--- a/contract/data/mail_template.xml
+++ b/contract/data/mail_template.xml
@@ -67,4 +67,54 @@
 </div>
         ]]></field>
     </record>
+    <record id="mail_template_contract_modification" model="mail.template">
+        <field name="name">Contract Modification Template</field>
+        <field
+            name="email_from"
+        >${(object.user_id.email and '%s &lt;%s&gt;' % (object.user_id.name, object.user_id.email) or '')|safe}</field>
+        <field
+            name="subject"
+        >${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - Modifications</field>
+        <field name="model_id" ref="model_contract_contract" />
+        <field name="lang">${object.partner_id.lang}</field>
+        <field
+            name="body_html"
+        ><![CDATA[
+            <p>Hello</p>
+            <p>We have modifications on the contract that we want to notify you.</p>
+        ]]></field>
+    </record>
+    <template
+        id="mail_notification_contract"
+        inherit_id="mail.mail_notification_paynow"
+        primary="True"
+    >
+        <xpath expr="//t[@t-raw='message.body']" position="after">
+            <t t-raw="0" />
+        </xpath>
+    </template>
+    <template id="template_contract_modification" name="Contract Modification">
+        <t t-call="contract.mail_notification_contract">
+            <table border="1" align="center">
+                <thead>
+                    <tr>
+                        <th name="th_date">Date</th>
+                        <th name="th_description">Description</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    <t t-foreach="record.modification_ids" t-as="modification">
+                        <tr t-if="not modification.sent">
+                            <td name="td_date">
+                                <span t-field="modification.date" />
+                            </td>
+                            <td name="td_description">
+                                <div t-field="modification.description" />
+                            </td>
+                        </tr>
+                    </t>
+                </tbody>
+            </table>
+        </t>
+    </template>
 </odoo>
diff --git a/contract/i18n/am.po b/contract/i18n/am.po
index d54bdcd08..df6abe718 100644
--- a/contract/i18n/am.po
+++ b/contract/i18n/am.po
@@ -18,6 +18,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n > 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -92,6 +102,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -169,6 +186,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -465,6 +487,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -477,6 +500,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -510,13 +538,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -680,6 +708,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr "Creado por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1168,6 +1217,7 @@ msgstr "Última actualización en"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1183,6 +1233,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1196,6 +1247,7 @@ msgstr "Última actualización por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1203,11 +1255,6 @@ msgstr "Última actualización por"
 msgid "Last Updated on"
 msgstr "Última actualización en"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1261,6 +1308,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1487,6 +1540,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1513,6 +1571,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1660,6 +1719,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/ar.po b/contract/i18n/ar.po
index c85809de1..3790345df 100644
--- a/contract/i18n/ar.po
+++ b/contract/i18n/ar.po
@@ -19,6 +19,16 @@ msgstr ""
 "Plural-Forms: nplurals=6; plural=n==0 ? 0 : n==1 ? 1 : n==2 ? 2 : n%100>=3 "
 "&& n%100<=10 ? 3 : n%100>=11 && n%100<=99 ? 4 : 5;\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -736,6 +775,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -749,6 +789,7 @@ msgstr "أنشئ بواسطة"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -790,7 +831,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -872,9 +916,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -908,6 +955,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -974,6 +1022,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1169,6 +1218,7 @@ msgstr "آخر تحديث في"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1184,6 +1234,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1197,6 +1248,7 @@ msgstr "آخر تحديث بواسطة"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1204,11 +1256,6 @@ msgstr "آخر تحديث بواسطة"
 msgid "Last Updated on"
 msgstr "آخر تحديث في"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1262,6 +1309,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1488,6 +1541,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1514,6 +1572,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1661,6 +1720,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/bg.po b/contract/i18n/bg.po
index f74967897..8dd062f03 100644
--- a/contract/i18n/bg.po
+++ b/contract/i18n/bg.po
@@ -18,6 +18,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -92,6 +102,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -169,6 +186,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -465,6 +487,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -477,6 +500,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -510,13 +538,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -680,6 +708,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr "Създадено от"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "Описание"
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1168,6 +1217,7 @@ msgstr "Последно обновено на"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1183,6 +1233,7 @@ msgstr "Последно обновено на"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1196,6 +1247,7 @@ msgstr "Последно обновено от"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1203,11 +1255,6 @@ msgstr "Последно обновено от"
 msgid "Last Updated on"
 msgstr "Последно обновено на"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1261,6 +1308,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1487,6 +1540,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1513,6 +1571,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1661,6 +1720,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/bs.po b/contract/i18n/bs.po
index 265aae11a..84dd67f3f 100644
--- a/contract/i18n/bs.po
+++ b/contract/i18n/bs.po
@@ -19,6 +19,16 @@ msgstr ""
 "Plural-Forms: nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n"
 "%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -736,6 +775,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -749,6 +789,7 @@ msgstr "Kreirao"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -790,7 +831,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -872,9 +916,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -908,6 +955,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -974,6 +1022,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1168,6 +1217,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1183,6 +1233,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1196,6 +1247,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1203,11 +1255,6 @@ msgstr ""
 msgid "Last Updated on"
 msgstr ""
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1261,6 +1308,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1487,6 +1540,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1513,6 +1571,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1660,6 +1719,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/ca.po b/contract/i18n/ca.po
index f7cb4014f..d7986df22 100644
--- a/contract/i18n/ca.po
+++ b/contract/i18n/ca.po
@@ -19,6 +19,16 @@ msgstr ""
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
 "X-Generator: Weblate 3.8\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr "${object.company_id.name} Contracte (Ref ${object.name or 'n/d'})"
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -171,6 +188,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr "<strong>Descripció</strong>"
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 #, fuzzy
@@ -473,6 +495,7 @@ msgstr "Contacte"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -485,6 +508,11 @@ msgstr "Contracte"
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 #, fuzzy
@@ -518,16 +546,16 @@ msgstr ""
 msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 msgid "Contract Name"
 msgstr "Nom del Contracte"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -695,6 +723,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -751,6 +790,7 @@ msgstr "Generar factures"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -764,6 +804,7 @@ msgstr "Creat per"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -806,7 +847,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -888,9 +932,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "Descripció"
 
@@ -926,6 +973,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -992,6 +1040,7 @@ msgstr "Agrupa Per..."
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1188,6 +1237,7 @@ msgstr "Darrera Data de Facturació"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1203,6 +1253,7 @@ msgstr "Darrera Modificació el"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1216,6 +1267,7 @@ msgstr "Darrera Actualització per"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1223,11 +1275,6 @@ msgstr "Darrera Actualització per"
 msgid "Last Updated on"
 msgstr "Darrera Actualització el"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1283,6 +1330,12 @@ msgstr "Error d'Entrega de Missatge"
 msgid "Messages"
 msgstr "Missatges"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1510,6 +1563,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1536,6 +1594,7 @@ msgstr "Contractes de Compra"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr "Quantitat"
 
@@ -1684,6 +1743,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr "Enviar per Email"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/contract.pot b/contract/i18n/contract.pot
index 09a90bfcd..2e2af36bd 100644
--- a/contract/i18n/contract.pot
+++ b/contract/i18n/contract.pot
@@ -13,6 +13,15 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: \n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -73,6 +82,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -149,6 +165,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -445,6 +466,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -457,6 +479,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -490,13 +517,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -660,6 +687,17 @@ msgid ""
 "id=\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -714,6 +752,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -727,6 +766,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -768,7 +808,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -850,9 +893,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -886,6 +932,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -952,6 +999,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1146,6 +1194,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1161,6 +1210,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1174,6 +1224,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1181,11 +1232,6 @@ msgstr ""
 msgid "Last Updated on"
 msgstr ""
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1239,6 +1285,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1465,6 +1517,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1491,6 +1548,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1638,6 +1696,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/cs.po b/contract/i18n/cs.po
index 092e8fabc..a1aa6d4d4 100644
--- a/contract/i18n/cs.po
+++ b/contract/i18n/cs.po
@@ -18,6 +18,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=3; plural=(n==1) ? 0 : (n>=2 && n<=4) ? 1 : 2;\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -92,6 +102,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -169,6 +186,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -465,6 +487,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -477,6 +500,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -510,13 +538,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -680,6 +708,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr "Vytvořil(a)"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1168,6 +1217,7 @@ msgstr "Naposled upraveno"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1183,6 +1233,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1196,6 +1247,7 @@ msgstr "Naposled upraveno"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1203,11 +1255,6 @@ msgstr "Naposled upraveno"
 msgid "Last Updated on"
 msgstr "Naposled upraveno"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1261,6 +1308,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1487,6 +1540,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1513,6 +1571,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1660,6 +1719,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/da.po b/contract/i18n/da.po
index 94850f928..73b663411 100644
--- a/contract/i18n/da.po
+++ b/contract/i18n/da.po
@@ -18,6 +18,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -92,6 +102,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -169,6 +186,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -465,6 +487,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -477,6 +500,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -510,13 +538,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -680,6 +708,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr "Oprettet af"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1168,6 +1217,7 @@ msgstr "Sidst opdateret den"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1183,6 +1233,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1196,6 +1247,7 @@ msgstr "Sidst opdateret af"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1203,11 +1255,6 @@ msgstr "Sidst opdateret af"
 msgid "Last Updated on"
 msgstr "Sidst opdateret den"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1261,6 +1308,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1487,6 +1540,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1513,6 +1571,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1660,6 +1719,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/de.po b/contract/i18n/de.po
index 0e1d55609..072057af7 100644
--- a/contract/i18n/de.po
+++ b/contract/i18n/de.po
@@ -20,6 +20,16 @@ msgstr ""
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
 "X-Generator: Weblate 3.10\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -94,6 +104,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr "${object.company_id.name} Vertrag (Ref: ${object.name or 'k.A.'})"
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -171,6 +188,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr "<strong>Beschreibung</strong>"
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -471,6 +493,7 @@ msgstr "Kontakt"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -483,6 +506,11 @@ msgstr "Vertrag"
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 #, fuzzy
@@ -516,16 +544,16 @@ msgstr "Rechnung manuell erstellen"
 msgid "Contract Manually Create Invoice Wizard"
 msgstr "Assistent zum manuellen Erstellen der Rechnung"
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 msgid "Contract Name"
 msgstr "Vertragsname"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -716,6 +744,17 @@ msgstr ""
 "Vertrag manuell abgerechnet: <a href=\"#\" data-oe-model=\"%s\" data-oe-id="
 "\"%s\">Rechnung</a>"
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -771,6 +810,7 @@ msgstr "Rechnungen anlegen"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -784,6 +824,7 @@ msgstr "Erstellt von"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -826,7 +867,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -908,9 +952,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "Beschreibung"
 
@@ -946,6 +993,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -1013,6 +1061,7 @@ msgstr "Gruppieren nach..."
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1216,6 +1265,7 @@ msgstr "Datum der letzten Rechnung"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1231,6 +1281,7 @@ msgstr "Zuletzt geändert am"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1244,6 +1295,7 @@ msgstr "Zuletzt aktualisiert von"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1251,11 +1303,6 @@ msgstr "Zuletzt aktualisiert von"
 msgid "Last Updated on"
 msgstr "Zuletzt aktualisiert am"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1309,6 +1356,12 @@ msgstr "Nachrichten-Zustellfehler"
 msgid "Messages"
 msgstr "Nachrichten"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1536,6 +1589,11 @@ msgstr "Vertragsvorgänger-Positionen"
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1562,6 +1620,7 @@ msgstr "Einkaufsverträge"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr "Menge"
 
@@ -1709,6 +1768,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr "als Email versenden"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/el_GR.po b/contract/i18n/el_GR.po
index 0cfd49a5e..580b1e3a6 100644
--- a/contract/i18n/el_GR.po
+++ b/contract/i18n/el_GR.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -468,6 +490,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -480,6 +503,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -513,13 +541,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -684,6 +712,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -739,6 +778,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -752,6 +792,7 @@ msgstr "Δημιουργήθηκε από "
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -793,7 +834,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -875,9 +919,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -911,6 +958,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -977,6 +1025,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1172,6 +1221,7 @@ msgstr "Τελευταία ενημέρωση στις"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1187,6 +1237,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1200,6 +1251,7 @@ msgstr "Τελευταία ενημέρωση από"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1207,11 +1259,6 @@ msgstr "Τελευταία ενημέρωση από"
 msgid "Last Updated on"
 msgstr "Τελευταία ενημέρωση στις"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1265,6 +1312,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1491,6 +1544,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1517,6 +1575,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1664,6 +1723,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/en_GB.po b/contract/i18n/en_GB.po
index 7bb280fab..386556e05 100644
--- a/contract/i18n/en_GB.po
+++ b/contract/i18n/en_GB.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -736,6 +775,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -749,6 +789,7 @@ msgstr "Created by"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -790,7 +831,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -872,9 +916,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -908,6 +955,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -974,6 +1022,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1169,6 +1218,7 @@ msgstr "Last Updated on"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1184,6 +1234,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1197,6 +1248,7 @@ msgstr "Last Updated by"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1204,11 +1256,6 @@ msgstr "Last Updated by"
 msgid "Last Updated on"
 msgstr "Last Updated on"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1262,6 +1309,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1488,6 +1541,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1514,6 +1572,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1661,6 +1720,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/es.po b/contract/i18n/es.po
index 059410232..586d8d258 100644
--- a/contract/i18n/es.po
+++ b/contract/i18n/es.po
@@ -9,16 +9,31 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Odoo Server 11.0\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-04-27 01:12+0000\n"
-"PO-Revision-Date: 2020-06-17 11:28+0000\n"
+"POT-Creation-Date: 2020-12-31 14:54+0000\n"
+"PO-Revision-Date: 2020-12-31 15:55+0100\n"
 "Last-Translator: Pedro M. Baeza <pedro.baeza@gmail.com>\n"
 "Language-Team: Spanish (https://www.transifex.com/oca/teams/23907/es/)\n"
 "Language: es\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
-"Content-Transfer-Encoding: \n"
+"Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
-"X-Generator: Weblate 3.10\n"
+"X-Generator: Poedit 2.3\n"
+
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+"\n"
+"            <p>Hola</p>\n"
+"            <p>Tenemos modificaciones en el contrato que queremos "
+"notificarle.</p>\n"
+"        "
 
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
@@ -88,12 +103,85 @@ msgid ""
 "</div>\n"
 "        "
 msgstr ""
+"\n"
+"<div style=\"font-family: 'Lucida Grande', Ubuntu, Arial, Verdana, sans-"
+"serif; font-size: 12px; color: rgb(34, 34, 34); background-color: #FFF; \">\n"
+"    <p>Hola ${object.partner_id.name or ''},</p>\n"
+"    <p>Se ha creado un nuevo contrato: </p>\n"
+"\n"
+"    <p style=\"border-left: 1px solid #8e0000; margin-left: 30px;\">\n"
+"       &nbsp;&nbsp;<strong>REFERENCIAS</strong><br />\n"
+"       &nbsp;&nbsp;Contrato: <strong>${object.name}</strong><br />\n"
+"       % if object.date_start:\n"
+"       &nbsp;&nbsp;Fecha inicio contrato: ${object.date_start or ''}<br />\n"
+"       % endif\n"
+"\n"
+"       % if object.user_id:\n"
+"       % if object.user_id.email:\n"
+"       &nbsp;&nbsp;Su contacto: <a href=\"mailto:${object.user_id.email or "
+"''}?subject=Contract%20${object.name}\">${object.user_id.name}</a>\n"
+"       % else:\n"
+"       &nbsp;&nbsp;Su contacto: ${object.user_id.name}\n"
+"       % endif\n"
+"       % endif\n"
+"    </p>\n"
+"\n"
+"    <br/>\n"
+"    <p>Si tiene alguna pregunta, no dude en contactarnos.</p>\n"
+"    <p>Gracias por elegir a ${object.company_id.name or 'nosotros'}!</p>\n"
+"    <br/>\n"
+"    <br/>\n"
+"    <div style=\"width: 375px; margin: 0px; padding: 0px; background-color: "
+"#8E0000; border-top-left-radius: 5px 5px; border-top-right-radius: 5px 5px; "
+"background-repeat: repeat no-repeat;\">\n"
+"        <h3 style=\"margin: 0px; padding: 2px 14px; font-size: 12px; color: "
+"#DDD;\">\n"
+"            <strong style=\"text-transform:uppercase;\">${object.company_id."
+"name}</strong></h3>\n"
+"    </div>\n"
+"    <div style=\"width: 347px; margin: 0px; padding: 5px 14px; line-height: "
+"16px; background-color: #F2F2F2;\">\n"
+"        <span style=\"color: #222; margin-bottom: 5px; display: block; \">\n"
+"            ${object.company_id.partner_id.sudo()."
+"with_context(show_address=True, html_format=True).name_get()[0][1] | safe}\n"
+"        </span>\n"
+"        % if object.company_id.phone:\n"
+"            <div style=\"margin-top: 0px; margin-right: 0px; margin-bottom: "
+"0px; margin-left: 0px; padding-top: 0px; padding-right: 0px; padding-bottom: "
+"0px; padding-left: 0px; \">\n"
+"                Teléfono: ${object.company_id.phone}\n"
+"            </div>\n"
+"        % endif\n"
+"        % if object.company_id.website:\n"
+"            <div>\n"
+"                Web: <a href=\"${object.company_id.website}\">${object."
+"company_id.website}</a>\n"
+"            </div>\n"
+"        %endif\n"
+"        <p></p>\n"
+"    </div>\n"
+"    <p></p>\n"
+"    <a href=\"${object.get_base_url()}/my/contracts/${object.id}?"
+"access_token=${object.access_token}\" target=\"_blank\" style=\"background-"
+"color:#875A7B;padding: 8px 16px 8px 16px; text-decoration: none; color: "
+"#fff; border-radius: 5px; font-size:13px;\">Ver contrato</a>\n"
+"</div>\n"
+"        "
 
 #. module: contract
 #: model:mail.template,subject:contract.email_contract_template
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr "${object.company_id.name} Contrato (Ref ${object.name or 'n/a'})"
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+"${object.company_id.name} Contrato (Ref ${object.name or 'n/a'}) - "
+"Modificaciones"
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -127,6 +215,10 @@ msgid ""
 "                                    the\n"
 "                                    invoiced period"
 msgstr ""
+"<strong>#END#</strong>: Fecha final\n"
+"                                    del\n"
+"                                    periodo\n"
+"                                    facturado"
 
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -142,6 +234,10 @@ msgid ""
 "                                    of the\n"
 "                                    invoiced period"
 msgstr ""
+"<strong>#START#</strong>: Fecha\n"
+"                                    inicio\n"
+"                                    del\n"
+"                                    periodo facturado"
 
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -156,7 +252,7 @@ msgstr "<strong>Contrato: </strong>"
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "<strong>Customer:</strong>"
-msgstr ""
+msgstr "<strong>Cliente:</strong>"
 
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
@@ -166,18 +262,23 @@ msgstr "<strong>Fecha de inicio</strong>"
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "<strong>Date end</strong>"
-msgstr ""
+msgstr "<strong>Fecha fin</strong>"
 
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "<strong>Date of Next Invoice</strong>"
-msgstr ""
+msgstr "<strong>Fecha de siguiente factura</strong>"
 
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Description</strong>"
 msgstr "<strong>Descripción</strong>"
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr "<strong>Modificaciones</strong>"
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -206,7 +307,7 @@ msgstr "<strong>Elementos recurrentes</strong>"
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "<strong>Reference</strong>"
-msgstr ""
+msgstr "<strong>Referencia</strong>"
 
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
@@ -216,7 +317,7 @@ msgstr "<strong>Responsable: </strong>"
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "<strong>Responsible:</strong>"
-msgstr ""
+msgstr "<strong>Responsable:</strong>"
 
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
@@ -259,7 +360,7 @@ msgstr "Línea de Contrato Recurrente Abstracta"
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_contract__access_warning
 msgid "Access warning"
-msgstr ""
+msgstr "Alerta de acceso"
 
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_contract__message_needaction
@@ -280,7 +381,7 @@ msgstr "Actividades"
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_contract__activity_exception_decoration
 msgid "Activity Exception Decoration"
-msgstr ""
+msgstr "Decoración de excepción de actividad"
 
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_contract__activity_state
@@ -371,7 +472,7 @@ msgstr "¿Precio automático?"
 #. module: contract
 #: model:ir.model,name:contract.model_contract_recurrency_basic_mixin
 msgid "Basic recurrency mixin for abstract contract models"
-msgstr ""
+msgstr "Mixin de recurrencia básica para modelos de contrato abstracto"
 
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
@@ -434,7 +535,7 @@ msgstr "Entidad comercial"
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Communication"
-msgstr ""
+msgstr "Comunicación"
 
 #. module: contract
 #: model:ir.model,name:contract.model_res_company
@@ -475,6 +576,7 @@ msgstr "Contacto"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -485,7 +587,12 @@ msgstr "Contrato"
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
 msgid "Contract #"
-msgstr ""
+msgstr "Contrato #"
+
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr "Contrato -"
 
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
@@ -519,16 +626,16 @@ msgstr "Contrato Crear factura manualmente"
 msgid "Contract Manually Create Invoice Wizard"
 msgstr "Asistente de creación manual de facturas de contrato"
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr "Modificación del contrato"
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 msgid "Contract Name"
 msgstr "Nombre del contrato"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -704,7 +811,7 @@ msgstr "Líneas de contrato"
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_contract__contract_line_fixed_ids
 msgid "Contract lines (fixed)"
-msgstr ""
+msgstr "Líneas de contrato (fijo)"
 
 #. module: contract
 #: code:addons/contract/models/contract.py:0
@@ -716,6 +823,17 @@ msgstr ""
 "Contratos facturados manualmente: <a href=\"#\" data-oe-model=\"%s\" data-oe-"
 "id=\"%s\">Factura</a>"
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr "Modificaciones del contrato"
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr "Inicio del contrato"
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -770,6 +888,7 @@ msgstr "Crear facturas"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -783,6 +902,7 @@ msgstr "Creado por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -820,14 +940,17 @@ msgstr "Contratos de cliente"
 #. module: contract
 #: model:ir.model.fields,help:contract.field_contract_contract__access_url
 msgid "Customer Portal URL"
-msgstr ""
+msgstr "URL para portal"
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
-msgstr ""
+msgstr "Fecha"
 
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_contract__date_end
@@ -854,7 +977,7 @@ msgstr "Fecha de inicio"
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
 msgid "Date end"
-msgstr ""
+msgstr "Fecha fin"
 
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__recurring_next_date
@@ -871,7 +994,7 @@ msgstr "Próxima fecha de factura"
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Date of next invoice"
-msgstr ""
+msgstr "Fecha de siguiente factura"
 
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__daily
@@ -910,9 +1033,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "Descripción"
 
@@ -948,6 +1074,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -1014,6 +1141,7 @@ msgstr "Agrupar por..."
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1026,12 +1154,12 @@ msgstr "ID"
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_contract__activity_exception_icon
 msgid "Icon"
-msgstr ""
+msgstr "Icono"
 
 #. module: contract
 #: model:ir.model.fields,help:contract.field_contract_contract__activity_exception_icon
 msgid "Icon to indicate an exception activity."
-msgstr ""
+msgstr "Icono para indicar una actividad de excepción."
 
 #. module: contract
 #: model:ir.model.fields,help:contract.field_res_company__create_new_line_at_contract_line_renew
@@ -1114,7 +1242,7 @@ msgstr "Facturar cada"
 #. module: contract
 #: model:mail.message.subtype,name:contract.mail_message_subtype_invoice_created
 msgid "Invoice created"
-msgstr ""
+msgstr "Factura creada"
 
 #. module: contract
 #: model:ir.model.fields,help:contract.field_contract_abstract_contract__recurring_interval
@@ -1174,7 +1302,7 @@ msgstr "Es seguidor"
 #: model:ir.model.fields,field_description:contract.field_contract_line__is_recurring_note
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__is_recurring_note
 msgid "Is Recurring Note"
-msgstr ""
+msgstr "Es nota recurrente"
 
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_line_wizard_stop_form_view
@@ -1192,12 +1320,12 @@ msgstr "Diario"
 #. module: contract
 #: model:ir.model,name:contract.model_account_move
 msgid "Journal Entries"
-msgstr ""
+msgstr "Asientos contables"
 
 #. module: contract
 #: model:ir.model,name:contract.model_account_move_line
 msgid "Journal Item"
-msgstr ""
+msgstr "Apunte contable"
 
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__last_date_invoiced
@@ -1216,6 +1344,7 @@ msgstr "Última fecha facturada"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1231,6 +1360,7 @@ msgstr "Última Modificación en"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1244,6 +1374,7 @@ msgstr "Última Actualización por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1251,11 +1382,6 @@ msgstr "Última Actualización por"
 msgid "Last Updated on"
 msgstr "Última Actualización en"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1271,7 +1397,7 @@ msgstr "Adjunto principal"
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_contract__manual_currency_id
 msgid "Manual Currency"
-msgstr ""
+msgstr "Moneda manual"
 
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_line__manual_renew_needed
@@ -1299,6 +1425,8 @@ msgid ""
 "Mark this check if you want to control recurrrence at line level instead of "
 "all together for the whole contract."
 msgstr ""
+"Marque esta casilla si desea controlar la recurrencia a nivel de línea en "
+"lugar de todos juntos para todo el contrato."
 
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_contract__message_has_error
@@ -1310,6 +1438,12 @@ msgstr "Mensaje de Error de entrega"
 msgid "Messages"
 msgstr "Mensajes"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr "Modificaciones"
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1437,7 +1571,7 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_contract__message_has_error_counter
 msgid "Number of errors"
-msgstr ""
+msgstr "Número de errores"
 
 #. module: contract
 #: model:ir.model.fields,help:contract.field_contract_contract__message_needaction_counter
@@ -1502,7 +1636,7 @@ msgstr "Por favor defina un diario de %s para la compañía '%s'."
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_contract__access_url
 msgid "Portal Access URL"
-msgstr ""
+msgstr "URL de acceso al portal"
 
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_invoicing_type__post-paid
@@ -1536,7 +1670,13 @@ msgstr "Líneas de contrato predecesora"
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 msgid "Preview"
-msgstr ""
+msgstr "Previsualizar"
+
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#, fuzzy
+msgid "Price unit"
+msgstr "Precio unitario"
 
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
@@ -1564,6 +1704,7 @@ msgstr "Contratos de compras"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr "Cantidad"
 
@@ -1598,12 +1739,12 @@ msgstr "Recurrencia"
 #: model:ir.model.fields,field_description:contract.field_contract_contract__line_recurrence
 #: model:ir.model.fields,field_description:contract.field_contract_template__line_recurrence
 msgid "Recurrence at line level?"
-msgstr ""
+msgstr "¿Recurrencia a nivel de línea?"
 
 #. module: contract
 #: model:ir.model,name:contract.model_contract_recurrency_mixin
 msgid "Recurrency mixin for contract models"
-msgstr ""
+msgstr "Mixin de recurrencia para modelos contractuales"
 
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
@@ -1671,7 +1812,7 @@ msgstr "Usuario Responsable"
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_contract__message_has_sms_error
 msgid "SMS Delivery error"
-msgstr ""
+msgstr "Error de entrega de SMS"
 
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_res_partner__sale_contract_count
@@ -1691,7 +1832,7 @@ msgstr "Sección"
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_contract__access_token
 msgid "Security Token"
-msgstr ""
+msgstr "Token de seguridad"
 
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__semesterly
@@ -1711,6 +1852,11 @@ msgstr "Semestre/s"
 msgid "Send by Email"
 msgstr "Enviar por correo electrónico"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr "Enviado"
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
@@ -1962,7 +2108,7 @@ msgstr "Para renovar"
 #. module: contract
 #: model:ir.model.fields,help:contract.field_contract_contract__activity_exception_decoration
 msgid "Type of the exception activity on record."
-msgstr ""
+msgstr "Tipo de actividad de excepción en registro."
 
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_line__is_un_cancel_allowed
@@ -2167,231 +2313,8 @@ msgstr "ejemplo Contrato XYZ"
 msgid "on"
 msgstr "en"
 
-#~ msgid ""
-#~ "\n"
-#~ "<div style=\"font-family: 'Lucida Grande', Ubuntu, Arial, Verdana, sans-"
-#~ "serif; font-size: 12px; color: rgb(34, 34, 34); background-color: #FFF; "
-#~ "\">\n"
-#~ "    <p>Hello ${object.partner_id.name or ''},</p>\n"
-#~ "    <p>A new contract has been created: </p>\n"
-#~ "\n"
-#~ "    <p style=\"border-left: 1px solid #8e0000; margin-left: 30px;\">\n"
-#~ "       &nbsp;&nbsp;<strong>REFERENCES</strong><br />\n"
-#~ "       &nbsp;&nbsp;Contract: <strong>${object.name}</strong><br />\n"
-#~ "       % if object.date_start:\n"
-#~ "       &nbsp;&nbsp;Contract Date Start: ${object.date_start or ''}<br />\n"
-#~ "       % endif\n"
-#~ "\n"
-#~ "       % if object.user_id:\n"
-#~ "       % if object.user_id.email:\n"
-#~ "       &nbsp;&nbsp;Your Contact: <a href=\"mailto:${object.user_id.email "
-#~ "or ''}?subject=Contract%20${object.name}\">${object.user_id.name}</a>\n"
-#~ "       % else:\n"
-#~ "       &nbsp;&nbsp;Your Contact: ${object.user_id.name}\n"
-#~ "       % endif\n"
-#~ "       % endif\n"
-#~ "    </p>\n"
-#~ "\n"
-#~ "    <br/>\n"
-#~ "    <p>If you have any questions, do not hesitate to contact us.</p>\n"
-#~ "    <p>Thank you for choosing ${object.company_id.name or 'us'}!</p>\n"
-#~ "    <br/>\n"
-#~ "    <br/>\n"
-#~ "    <div style=\"width: 375px; margin: 0px; padding: 0px; background-"
-#~ "color: #8E0000; border-top-left-radius: 5px 5px; border-top-right-radius: "
-#~ "5px 5px; background-repeat: repeat no-repeat;\">\n"
-#~ "        <h3 style=\"margin: 0px; padding: 2px 14px; font-size: 12px; "
-#~ "color: #DDD;\">\n"
-#~ "            <strong style=\"text-transform:uppercase;\">${object."
-#~ "company_id.name}</strong></h3>\n"
-#~ "    </div>\n"
-#~ "    <div style=\"width: 347px; margin: 0px; padding: 5px 14px; line-"
-#~ "height: 16px; background-color: #F2F2F2;\">\n"
-#~ "        <span style=\"color: #222; margin-bottom: 5px; display: block; "
-#~ "\">\n"
-#~ "            ${object.company_id.partner_id.sudo()."
-#~ "with_context(show_address=True, html_format=True).name_get()[0][1] | "
-#~ "safe}\n"
-#~ "        </span>\n"
-#~ "        % if object.company_id.phone:\n"
-#~ "            <div style=\"margin-top: 0px; margin-right: 0px; margin-"
-#~ "bottom: 0px; margin-left: 0px; padding-top: 0px; padding-right: 0px; "
-#~ "padding-bottom: 0px; padding-left: 0px; \">\n"
-#~ "                Phone: ${object.company_id.phone}\n"
-#~ "            </div>\n"
-#~ "        % endif\n"
-#~ "        % if object.company_id.website:\n"
-#~ "            <div>\n"
-#~ "                Web: <a href=\"${object.company_id.website}\">${object."
-#~ "company_id.website}</a>\n"
-#~ "            </div>\n"
-#~ "        %endif\n"
-#~ "        <p></p>\n"
-#~ "    </div>\n"
-#~ "</div>\n"
-#~ "        "
-#~ msgstr ""
-#~ "\n"
-#~ "<div style=\"font-family: 'Lucida Grande', Ubuntu, Arial, Verdana, sans-"
-#~ "serif; font-size: 12px; color: rgb(34, 34, 34); background-color: #FFF; "
-#~ "\">\n"
-#~ "    <p>Hola ${object.partner_id.name or ''},</p>\n"
-#~ "    <p>Se ha creado un nuevo contrato: </p>\n"
-#~ "\n"
-#~ "    <p style=\"border-left: 1px solid #8e0000; margin-left: 30px;\">\n"
-#~ "       &nbsp;&nbsp;<strong>REFERENCIAS</strong><br />\n"
-#~ "       &nbsp;&nbsp;Contrato: <strong>${object.name}</strong><br />\n"
-#~ "       &nbsp;&nbsp;Fecha de inicio del contrato: ${object.date_start or "
-#~ "''}<br />\n"
-#~ "\n"
-#~ "       % if object.user_id:\n"
-#~ "       % if object.user_id.email:\n"
-#~ "       &nbsp;&nbsp;Contacto: <a href=\"mailto:${object.user_id.email or "
-#~ "''}?subject=Contrato%20${object.name}\">${object.user_id.name}</a>\n"
-#~ "       % else:\n"
-#~ "       &nbsp;&nbsp;Contacto: ${object.user_id.name}\n"
-#~ "       % endif\n"
-#~ "       % endif\n"
-#~ "    </p>\n"
-#~ "\n"
-#~ "    <br/>\n"
-#~ "    <p>Si tiene cualquier pregunta, no dude en contactarnos.</p>\n"
-#~ "    <p>Gracias por elegir ${object.company_id.name or 'nos'}!</p>\n"
-#~ "    <br/>\n"
-#~ "    <br/>\n"
-#~ "    <div style=\"width: 375px; margin: 0px; padding: 0px; background-"
-#~ "color: #8E0000; border-top-left-radius: 5px 5px; border-top-right-radius: "
-#~ "5px 5px; background-repeat: repeat no-repeat;\">\n"
-#~ "        <h3 style=\"margin: 0px; padding: 2px 14px; font-size: 12px; "
-#~ "color: #DDD;\">\n"
-#~ "            <strong style=\"text-transform:uppercase;\">${object."
-#~ "company_id.name}</strong></h3>\n"
-#~ "    </div>\n"
-#~ "    <div style=\"width: 347px; margin: 0px; padding: 5px 14px; line-"
-#~ "height: 16px; background-color: #F2F2F2;\">\n"
-#~ "        <span style=\"color: #222; margin-bottom: 5px; display: block; "
-#~ "\">\n"
-#~ "            ${object.company_id.partner_id.sudo()."
-#~ "with_context(show_address=True, html_format=True).name_get()[0][1] | "
-#~ "safe}\n"
-#~ "        </span>\n"
-#~ "        % if object.company_id.phone:\n"
-#~ "            <div style=\"margin-top: 0px; margin-right: 0px; margin-"
-#~ "bottom: 0px; margin-left: 0px; padding-top: 0px; padding-right: 0px; "
-#~ "padding-bottom: 0px; padding-left: 0px; \">\n"
-#~ "                Teléfono: ${object.company_id.phone}\n"
-#~ "            </div>\n"
-#~ "        % endif\n"
-#~ "        % if object.company_id.website:\n"
-#~ "            <div>\n"
-#~ "                Web: <a href=\"${object.company_id.website}\">${object."
-#~ "company_id.website}</a>\n"
-#~ "            </div>\n"
-#~ "        %endif\n"
-#~ "        <p></p>\n"
-#~ "    </div>\n"
-#~ "</div>\n"
-#~ "        "
+#~ msgid "Last date invoice"
+#~ msgstr "Última fecha de factura"
 
-#~ msgid ""
-#~ "<strong>#END#</strong>: End date\n"
-#~ "                                    of\n"
-#~ "                                    the\n"
-#~ "                                    invoiced period"
-#~ msgstr ""
-#~ "<strong>#END#</strong>: Fecha final\n"
-#~ "                                    del\n"
-#~ "                                    periodo\n"
-#~ "                                    facturado"
-
-#~ msgid ""
-#~ "<strong>#START#</strong>: Start\n"
-#~ "                                    date\n"
-#~ "                                    of the\n"
-#~ "                                    invoiced period"
-#~ msgstr ""
-#~ "<strong>#START#</strong>: Fecha\n"
-#~ "                                    inicio\n"
-#~ "                                    del\n"
-#~ "                                    periodo facturado"
-
-#~ msgid "If checked new messages require your attention."
-#~ msgstr "Si está marcado los nuevos mensajes requieren su atención."
-
-#~ msgid "Invoice"
-#~ msgstr "Factura"
-
-#~ msgid "Invoice Line"
-#~ msgstr "Línea de factura"
-
-#~ msgid "Number of error"
-#~ msgstr "Número de error"
-
-#~ msgid "Overdue"
-#~ msgstr "Vencido"
-
-#~ msgid "Planned"
-#~ msgstr "Planificado"
-
-#~ msgid "Today"
-#~ msgstr "Hoy"
-
-#~ msgid ""
-#~ "<strong>Notes: </strong>\n"
-#~ "                            <br/>"
-#~ msgstr ""
-#~ "<strong>Notas: </strong>\n"
-#~ "                            <br/>"
-
-#~ msgid "Specify if process date is 'from' or 'to' invoicing date"
-#~ msgstr ""
-#~ "Especifica si la fecha de proceso es desde o hasta la fecha de facturación"
-
-#~ msgid "Account Analytic Contract"
-#~ msgstr "Contratos Cuenta Analítica"
-
-#~ msgid "Account Analytic Lines"
-#~ msgstr "Ver líneas contables analíticas"
-
-#~ msgid "Date From"
-#~ msgstr "Fecha inicio"
-
-#~ msgid "Date To"
-#~ msgstr "Fecha fin"
-
-#~ msgid "Date from invoiced period"
-#~ msgstr "Fecha del periodo facturado"
-
-#~ msgid "Date to invoiced period"
-#~ msgstr "Fecha del periodo facturado"
-
-#~ msgid "Generate recurring invoices automatically"
-#~ msgstr "Generar facturas recurrentes automáticamente"
-
-#~ msgid "Partner and dependents"
-#~ msgstr "Empresa y contactos"
-
-#~ msgid "You must first select a Customer for Contract %s!"
-#~ msgstr "¡Seleccione un cliente para este contrato %s!"
-
-#~ msgid "You must first select a Supplier for Contract %s!"
-#~ msgstr "Tiene que seleccionar un Proveedor para el contrato %s!"
-
-#~ msgid ""
-#~ "You must review start and end dates!\n"
-#~ "%s"
-#~ msgstr ""
-#~ "Debe revisar las fechas de inicio y de fin\n"
-#~ "%s"
-
-#~ msgid "You must supply a customer for the contract '%s'"
-#~ msgstr "Debe especificar un cliente para el contrato '%s'"
-
-#~ msgid "You must supply a start date for contract '%s'"
-#~ msgstr "Debe suministrar una fecha de inicio para el contrato '%s'"
-
-#~ msgid "account.analytic.invoice.line"
-#~ msgstr "account.analytic.invoice.line"
-
-#~ msgid "⇒ Show recurring invoices"
-#~ msgstr "⇒ Mostrar facturas recurrentes"
+#~ msgid "Contract Order -"
+#~ msgstr "Pedido de contrato -"
diff --git a/contract/i18n/es_AR.po b/contract/i18n/es_AR.po
index 65a905924..664279622 100644
--- a/contract/i18n/es_AR.po
+++ b/contract/i18n/es_AR.po
@@ -20,6 +20,16 @@ msgstr ""
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
 "X-Generator: Weblate 4.3.2\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -94,6 +104,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr "${object.company_id.name} Contrato (Ref ${object.name or 'n/a'})"
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -187,6 +204,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr "<strong>Descripción</strong>"
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -489,6 +511,7 @@ msgstr "Contacto"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -501,6 +524,11 @@ msgstr "Contrato"
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -533,16 +561,16 @@ msgstr "Crear Facturas Manualmente"
 msgid "Contract Manually Create Invoice Wizard"
 msgstr "Wizard para Crear Facturas Manualmente"
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 msgid "Contract Name"
 msgstr "Nombre del Contrato"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -730,6 +758,17 @@ msgstr ""
 "Contrato facturado manualmente: <a href=\"#\" data-oe-model=\"%s\" data-oe-"
 "id=\"%s\">Factura</a>"
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -784,6 +823,7 @@ msgstr "Crear facturas"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -797,6 +837,7 @@ msgstr "Creado por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -838,7 +879,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -924,9 +968,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "Descripción"
 
@@ -962,6 +1009,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -1028,6 +1076,7 @@ msgstr "Agrupar Por..."
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1230,6 +1279,7 @@ msgstr "Última fecha de facturación"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1245,6 +1295,7 @@ msgstr "Última Modificación el"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1258,6 +1309,7 @@ msgstr "Última actualización realizada por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1265,11 +1317,6 @@ msgstr "Última actualización realizada por"
 msgid "Last Updated on"
 msgstr "Última actualización el"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1327,6 +1374,12 @@ msgstr "Error en Entrega de Mensaje"
 msgid "Messages"
 msgstr "Mensajes"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1555,6 +1608,11 @@ msgstr "Línea de Contrato Predecesora"
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1581,6 +1639,7 @@ msgstr "Contratos de Compra"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr "Cantidad"
 
@@ -1728,6 +1787,11 @@ msgstr "Semestre(s)"
 msgid "Send by Email"
 msgstr "Enviar por Correo Electrónico"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/es_CL.po b/contract/i18n/es_CL.po
index 811376f19..cc9bb1281 100644
--- a/contract/i18n/es_CL.po
+++ b/contract/i18n/es_CL.po
@@ -16,6 +16,16 @@ msgstr ""
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
 "X-Generator: Weblate 3.10\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -90,6 +100,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -167,6 +184,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -463,6 +485,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -475,6 +498,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -508,13 +536,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -678,6 +706,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -732,6 +771,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -745,6 +785,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -786,7 +827,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -868,9 +912,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -904,6 +951,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -970,6 +1018,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1164,6 +1213,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1179,6 +1229,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1192,6 +1243,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1199,11 +1251,6 @@ msgstr ""
 msgid "Last Updated on"
 msgstr ""
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1257,6 +1304,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1483,6 +1536,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1509,6 +1567,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1656,6 +1715,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/es_CO.po b/contract/i18n/es_CO.po
index a13f5cdbe..bb455be8c 100644
--- a/contract/i18n/es_CO.po
+++ b/contract/i18n/es_CO.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1167,6 +1216,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1182,6 +1232,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1195,6 +1246,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1202,11 +1254,6 @@ msgstr ""
 msgid "Last Updated on"
 msgstr ""
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1260,6 +1307,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1486,6 +1539,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1512,6 +1570,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1659,6 +1718,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/es_CR.po b/contract/i18n/es_CR.po
index 33802af87..63e43d7f7 100644
--- a/contract/i18n/es_CR.po
+++ b/contract/i18n/es_CR.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -736,6 +775,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -749,6 +789,7 @@ msgstr "Creado por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -790,7 +831,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -872,9 +916,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -908,6 +955,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -974,6 +1022,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1169,6 +1218,7 @@ msgstr "Ultima actualización en"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1184,6 +1234,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1197,6 +1248,7 @@ msgstr "Ultima actualización por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1204,11 +1256,6 @@ msgstr "Ultima actualización por"
 msgid "Last Updated on"
 msgstr "Ultima actualización en"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1262,6 +1309,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1488,6 +1541,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1514,6 +1572,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1661,6 +1720,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/es_DO.po b/contract/i18n/es_DO.po
index a629ee3fa..a05e27a2e 100644
--- a/contract/i18n/es_DO.po
+++ b/contract/i18n/es_DO.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1167,6 +1216,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1182,6 +1232,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1195,6 +1246,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1202,11 +1254,6 @@ msgstr ""
 msgid "Last Updated on"
 msgstr ""
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1260,6 +1307,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1486,6 +1539,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1512,6 +1570,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1659,6 +1718,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/es_EC.po b/contract/i18n/es_EC.po
index c05e02518..ee91c408e 100644
--- a/contract/i18n/es_EC.po
+++ b/contract/i18n/es_EC.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1167,6 +1216,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1182,6 +1232,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1195,6 +1246,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1202,11 +1254,6 @@ msgstr ""
 msgid "Last Updated on"
 msgstr ""
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1260,6 +1307,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1486,6 +1539,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1512,6 +1570,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1659,6 +1718,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/es_ES.po b/contract/i18n/es_ES.po
deleted file mode 100644
index 68a1b16fc..000000000
--- a/contract/i18n/es_ES.po
+++ /dev/null
@@ -1,2099 +0,0 @@
-# Translation of Odoo Server.
-# This file contains the translation of the following modules:
-# * contract
-#
-# Translators:
-# OCA Transbot <transbot@odoo-community.org>, 2017
-msgid ""
-msgstr ""
-"Project-Id-Version: Odoo Server 11.0\n"
-"Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2017-11-21 18:22+0000\n"
-"PO-Revision-Date: 2017-11-21 18:22+0000\n"
-"Last-Translator: OCA Transbot <transbot@odoo-community.org>, 2017\n"
-"Language-Team: Spanish (Spain) (https://www.transifex.com/oca/teams/23907/"
-"es_ES/)\n"
-"Language: es_ES\n"
-"MIME-Version: 1.0\n"
-"Content-Type: text/plain; charset=UTF-8\n"
-"Content-Transfer-Encoding: \n"
-"Plural-Forms: nplurals=2; plural=(n != 1);\n"
-
-#. module: contract
-#: model:mail.template,body_html:contract.email_contract_template
-msgid ""
-"\n"
-"<div style=\"font-family: 'Lucida Grande', Ubuntu, Arial, Verdana, sans-"
-"serif; font-size: 12px; color: rgb(34, 34, 34); background-color: #FFF; \">\n"
-"    <p>Hello ${object.partner_id.name or ''},</p>\n"
-"    <p>A new contract has been created: </p>\n"
-"\n"
-"    <p style=\"border-left: 1px solid #8e0000; margin-left: 30px;\">\n"
-"       &nbsp;&nbsp;<strong>REFERENCES</strong><br />\n"
-"       &nbsp;&nbsp;Contract: <strong>${object.name}</strong><br />\n"
-"       % if object.date_start:\n"
-"       &nbsp;&nbsp;Contract Date Start: ${object.date_start or ''}<br />\n"
-"       % endif\n"
-"\n"
-"       % if object.user_id:\n"
-"       % if object.user_id.email:\n"
-"       &nbsp;&nbsp;Your Contact: <a href=\"mailto:${object.user_id.email or "
-"''}?subject=Contract%20${object.name}\">${object.user_id.name}</a>\n"
-"       % else:\n"
-"       &nbsp;&nbsp;Your Contact: ${object.user_id.name}\n"
-"       % endif\n"
-"       % endif\n"
-"    </p>\n"
-"\n"
-"    <br/>\n"
-"    <p>If you have any questions, do not hesitate to contact us.</p>\n"
-"    <p>Thank you for choosing ${object.company_id.name or 'us'}!</p>\n"
-"    <br/>\n"
-"    <br/>\n"
-"    <div style=\"width: 375px; margin: 0px; padding: 0px; background-color: "
-"#8E0000; border-top-left-radius: 5px 5px; border-top-right-radius: 5px 5px; "
-"background-repeat: repeat no-repeat;\">\n"
-"        <h3 style=\"margin: 0px; padding: 2px 14px; font-size: 12px; color: "
-"#DDD;\">\n"
-"            <strong style=\"text-transform:uppercase;\">${object.company_id."
-"name}</strong></h3>\n"
-"    </div>\n"
-"    <div style=\"width: 347px; margin: 0px; padding: 5px 14px; line-height: "
-"16px; background-color: #F2F2F2;\">\n"
-"        <span style=\"color: #222; margin-bottom: 5px; display: block; \">\n"
-"            ${object.company_id.partner_id.sudo()."
-"with_context(show_address=True, html_format=True).name_get()[0][1] | safe}\n"
-"        </span>\n"
-"        % if object.company_id.phone:\n"
-"            <div style=\"margin-top: 0px; margin-right: 0px; margin-bottom: "
-"0px; margin-left: 0px; padding-top: 0px; padding-right: 0px; padding-bottom: "
-"0px; padding-left: 0px; \">\n"
-"                Phone: ${object.company_id.phone}\n"
-"            </div>\n"
-"        % endif\n"
-"        % if object.company_id.website:\n"
-"            <div>\n"
-"                Web: <a href=\"${object.company_id.website}\">${object."
-"company_id.website}</a>\n"
-"            </div>\n"
-"        %endif\n"
-"        <p></p>\n"
-"    </div>\n"
-"    <p></p>\n"
-"    <a href=\"${object.get_base_url()}/my/contracts/${object.id}?"
-"access_token=${object.access_token}\" target=\"_blank\" style=\"background-"
-"color:#875A7B;padding: 8px 16px 8px 16px; text-decoration: none; color: "
-"#fff; border-radius: 5px; font-size:13px;\">View contract</a>\n"
-"</div>\n"
-"        "
-msgstr ""
-
-#. module: contract
-#: model:mail.template,subject:contract.email_contract_template
-msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
-msgid ""
-"<span attrs=\"{'invisible': [('contract_to_invoice_count', '&gt;', 1)]}\">\n"
-"                                contract to invoice\n"
-"                            </span>\n"
-"                            <span attrs=\"{'invisible': "
-"[('contract_to_invoice_count', '&lt;', 1)]}\">\n"
-"                                contracts to invoice\n"
-"                            </span>"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
-msgid "<strong class=\"mr16\">Subtotal</strong>"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid ""
-"<strong>#END#</strong>\n"
-"                                    : End date\n"
-"                                    of\n"
-"                                    the\n"
-"                                    invoiced period"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
-msgid "<strong>#END#</strong>: End date of the invoiced period"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid ""
-"<strong>#START#</strong>\n"
-"                                    : Start\n"
-"                                    date\n"
-"                                    of the\n"
-"                                    invoiced period"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
-msgid "<strong>#START#</strong>: Start date of the invoiced period"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
-msgid "<strong>Contract: </strong>"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "<strong>Customer:</strong>"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
-msgid "<strong>Date Start</strong>"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "<strong>Date end</strong>"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "<strong>Date of Next Invoice</strong>"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
-msgid "<strong>Description</strong>"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
-msgid "<strong>Notes: </strong>"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
-msgid "<strong>Partner:</strong>"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
-msgid "<strong>Price</strong>"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
-msgid "<strong>Quantity</strong>"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
-msgid "<strong>Recurring Items</strong>"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "<strong>Reference</strong>"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
-msgid "<strong>Responsible: </strong>"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "<strong>Responsible:</strong>"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
-msgid "<strong>Total</strong>"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
-msgid "<strong>Unit Price</strong>"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid "A canceled contract line can't be set to auto-renew"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid "A contract line with a successor can't be set to auto-renew"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid "A contract line with a successor must have a end date"
-msgstr ""
-
-#. module: contract
-#: model:ir.model,name:contract.model_contract_abstract_contract
-msgid "Abstract Recurring Contract"
-msgstr ""
-
-#. module: contract
-#: model:ir.model,name:contract.model_contract_abstract_contract_line
-msgid "Abstract Recurring Contract Line"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__access_warning
-msgid "Access warning"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__message_needaction
-msgid "Action Needed"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__active
-#: model:ir.model.fields,field_description:contract.field_contract_line__active
-msgid "Active"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__activity_ids
-msgid "Activities"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__activity_exception_decoration
-msgid "Activity Exception Decoration"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__activity_state
-msgid "Activity State"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
-msgid "Add a line"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
-msgid "Add a note"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
-msgid "Add a section"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid "An auto-renew line must have a end date"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_line__analytic_tag_ids
-msgid "Analytic Tags"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_line__analytic_account_id
-msgid "Analytic account"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_search_view
-msgid "Archived"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_tree_view
-msgid "Are you sure you want to cancel this line"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Are you sure you want to re-activate this contract?"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
-msgid "Are you sure you want to terminate this contract?"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_search_view
-msgid "Associated Partner"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__message_attachment_count
-msgid "Attachment Count"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__is_auto_renew
-#: model:ir.model.fields,field_description:contract.field_contract_line__is_auto_renew
-#: model:ir.model.fields,field_description:contract.field_contract_line_wizard__is_auto_renew
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__is_auto_renew
-msgid "Auto Renew"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__automatic_price
-#: model:ir.model.fields,field_description:contract.field_contract_line__automatic_price
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__automatic_price
-msgid "Auto-price?"
-msgstr ""
-
-#. module: contract
-#: model:ir.model,name:contract.model_contract_recurrency_basic_mixin
-msgid "Basic recurrency mixin for abstract contract models"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_tree_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_wizard_plan_successor_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_wizard_stop_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_wizard_stop_plan_successor_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_wizard_uncancel_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
-msgid "Cancel"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Cancel Contract Termination"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_line__is_cancel_allowed
-msgid "Cancel allowed?"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid "Cancel not allowed for this line"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__is_canceled
-#: model:ir.model.fields,field_description:contract.field_contract_line__is_canceled
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__is_canceled
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__state__canceled
-msgid "Canceled"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.actions.act_window,help:contract.contract_template_action
-msgid "Click to create a new contract template."
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.actions.act_window,help:contract.action_customer_contract
-#: model_terms:ir.actions.act_window,help:contract.action_supplier_contract
-msgid "Click to create a new contract."
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__state__closed
-msgid "Closed"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__commercial_partner_id
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_search_view
-msgid "Commercial Entity"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Communication"
-msgstr ""
-
-#. module: contract
-#: model:ir.model,name:contract.model_res_company
-msgid "Companies"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__company_id
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__company_id
-#: model:ir.model.fields,field_description:contract.field_contract_contract__company_id
-#: model:ir.model.fields,field_description:contract.field_contract_line__company_id
-#: model:ir.model.fields,field_description:contract.field_contract_tag__company_id
-#: model:ir.model.fields,field_description:contract.field_contract_template__company_id
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__company_id
-msgid "Company"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract.py:0
-#, python-format
-msgid "Compose Email"
-msgstr ""
-
-#. module: contract
-#: model:ir.model,name:contract.model_res_config_settings
-msgid "Config Settings"
-msgstr ""
-
-#. module: contract
-#: model:ir.model,name:contract.model_res_partner
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contact"
-msgstr ""
-
-#. module: contract
-#: model:ir.actions.report,name:contract.report_contract
-#: model:ir.model,name:contract.model_contract_contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
-#: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
-#: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-#: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
-#: model:mail.template,report_name:contract.email_contract_template
-msgid "Contract"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
-msgid "Contract #"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
-msgid "Contract Contract Terminate"
-msgstr ""
-
-#. module: contract
-#: model:ir.model,name:contract.model_contract_line
-#: model:ir.model.fields,field_description:contract.field_account_move_line__contract_line_id
-#: model:ir.model.fields,field_description:contract.field_contract_line_wizard__contract_line_id
-msgid "Contract Line"
-msgstr ""
-
-#. module: contract
-#: model:ir.model,name:contract.model_contract_line_wizard
-msgid "Contract Line Wizard"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_line__predecessor_contract_line_id
-msgid "Contract Line origin of this one."
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
-msgid "Contract Manually Create Invoice"
-msgstr ""
-
-#. module: contract
-#: model:ir.model,name:contract.model_contract_manually_create_invoice
-msgid "Contract Manually Create Invoice Wizard"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
-#. module: contract
-#: model:ir.model,name:contract.model_contract_tag
-#: model:ir.ui.menu,name:contract.contract_tag_menu
-msgid "Contract Tag"
-msgstr ""
-
-#. module: contract
-#: model:ir.actions.act_window,name:contract.contract_tag_act_window
-msgid "Contract Tags"
-msgstr ""
-
-#. module: contract
-#: model:ir.model,name:contract.model_contract_template
-#: model:ir.model.fields,field_description:contract.field_contract_contract__contract_template_id
-#: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
-msgid "Contract Template"
-msgstr ""
-
-#. module: contract
-#: model:ir.model,name:contract.model_contract_template_line
-#: model_terms:ir.ui.view,arch_db:contract.contract_template_line_form_view
-msgid "Contract Template Line"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
-msgid "Contract Template Lines"
-msgstr ""
-
-#. module: contract
-#: model:ir.actions.act_window,name:contract.contract_template_action
-#: model:ir.ui.menu,name:contract.contract_template_menu
-msgid "Contract Templates"
-msgstr ""
-
-#. module: contract
-#: model:ir.actions.act_window,name:contract.contract_terminate_reason_act_window
-#: model:ir.model,name:contract.model_contract_terminate_reason
-#: model:ir.ui.menu,name:contract.contract_terminate_reason_menu
-msgid "Contract Termination Reason"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__contract_to_invoice_ids
-msgid "Contract To Invoice"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__contract_to_invoice_count
-msgid "Contract To Invoice Count"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__contract_type
-#: model:ir.model.fields,field_description:contract.field_contract_contract__contract_type
-#: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__contract_type
-#: model:ir.model.fields,field_description:contract.field_contract_template__contract_type
-#: model_terms:ir.ui.view,arch_db:contract.contract_template_search_view
-msgid "Contract Type"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid "Contract line '%s' start date can't be later than end date"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid "Contract line Un-canceled: %s<br/>- "
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid "Contract line and its predecessor overlapped"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid "Contract line and its successor overlapped"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid "Contract line canceled: %s<br/>- "
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid ""
-"Contract line for <strong>{product}</strong>\n"
-"                            stopped: <br/>\n"
-"                            - <strong>End</strong>: {old_end} -- {new_end}\n"
-"                            "
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid ""
-"Contract line for <strong>{product}</strong>\n"
-"                    planned a successor: <br/>\n"
-"                    - <strong>Start</strong>: {new_date_start}\n"
-"                    <br/>\n"
-"                    - <strong>End</strong>: {new_date_end}\n"
-"                    "
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid ""
-"Contract line for <strong>{product}</strong>\n"
-"                renewed: <br/>\n"
-"                - <strong>Start</strong>: {new_date_start}\n"
-"                <br/>\n"
-"                - <strong>End</strong>: {new_date_end}\n"
-"                "
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid ""
-"Contract line for <strong>{product}</strong>\n"
-"                suspended: <br/>\n"
-"                - <strong>Suspension Start</strong>: {new_date_start}\n"
-"                <br/>\n"
-"                - <strong>Suspension End</strong>: {new_date_end}\n"
-"                "
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid "Contract line must be canceled before delete"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__contract_line_ids
-msgid "Contract lines"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__contract_line_fixed_ids
-msgid "Contract lines (fixed)"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract.py:0
-#, python-format
-msgid ""
-"Contract manually invoiced: <a href=\"#\" data-oe-model=\"%s\" data-oe-id="
-"\"%s\">Invoice</a>"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
-msgid "Contract template lines"
-msgstr ""
-
-#. module: contract
-#: model:res.groups,name:contract.can_terminate_contract
-msgid "Contract: Can Terminate Contracts"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_res_partner__contract_ids
-#: model:ir.model.fields,field_description:contract.field_res_users__contract_ids
-#: model:ir.ui.menu,name:contract.menu_config_contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
-#: model_terms:ir.ui.view,arch_db:contract.portal_my_home_contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_my_home_menu_contract
-msgid "Contracts"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/wizards/contract_manually_create_invoice.py:0
-#, python-format
-msgid "Contracts to invoice"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__create_invoice_visibility
-#: model:ir.model.fields,field_description:contract.field_contract_line__create_invoice_visibility
-msgid "Create Invoice Visibility"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
-#, fuzzy
-msgid "Create Invoices"
-msgstr "Última actualización en"
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_res_company__create_new_line_at_contract_line_renew
-#: model:ir.model.fields,field_description:contract.field_res_config_settings__create_new_line_at_contract_line_renew
-msgid "Create New Line At Contract Line Renew"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Create invoices"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__create_uid
-#: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__create_uid
-#: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
-#: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
-#: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
-#: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
-#: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
-#: model:ir.model.fields,field_description:contract.field_contract_terminate_reason__create_uid
-msgid "Created by"
-msgstr "Creado por"
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__create_date
-#: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__create_date
-#: model:ir.model.fields,field_description:contract.field_contract_line__create_date
-#: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
-#: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
-#: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
-#: model:ir.model.fields,field_description:contract.field_contract_template__create_date
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
-#: model:ir.model.fields,field_description:contract.field_contract_terminate_reason__create_date
-msgid "Created on"
-msgstr "Creado en"
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__currency_id
-msgid "Currency"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__note_invoicing_mode__custom
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__note_invoicing_mode__custom
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__note_invoicing_mode__custom
-msgid "Custom"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__contract_type__sale
-#: model:ir.model.fields.selection,name:contract.selection__contract_contract__contract_type__sale
-#: model:ir.model.fields.selection,name:contract.selection__contract_manually_create_invoice__contract_type__sale
-#: model:ir.model.fields.selection,name:contract.selection__contract_template__contract_type__sale
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_customer_form_view
-msgid "Customer"
-msgstr ""
-
-#. module: contract
-#: model:ir.actions.act_window,name:contract.action_customer_contract
-#: model:ir.ui.menu,name:contract.menu_contract_contract_customer
-msgid "Customer Contracts"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_contract__access_url
-msgid "Customer Portal URL"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/controllers/main.py:0
-#: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
-#, python-format
-msgid "Date"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__date_end
-#: model:ir.model.fields,field_description:contract.field_contract_line__date_end
-#: model:ir.model.fields,field_description:contract.field_contract_line_wizard__date_end
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__date_end
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_search_view
-msgid "Date End"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__date_start
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__date_start
-#: model:ir.model.fields,field_description:contract.field_contract_contract__date_start
-#: model:ir.model.fields,field_description:contract.field_contract_line__date_start
-#: model:ir.model.fields,field_description:contract.field_contract_line_wizard__date_start
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__date_start
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__date_start
-#: model:ir.model.fields,field_description:contract.field_contract_template__date_start
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__date_start
-msgid "Date Start"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
-msgid "Date end"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__recurring_next_date
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__recurring_next_date
-#: model:ir.model.fields,field_description:contract.field_contract_contract__recurring_next_date
-#: model:ir.model.fields,field_description:contract.field_contract_line__recurring_next_date
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__recurring_next_date
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__recurring_next_date
-#: model:ir.model.fields,field_description:contract.field_contract_template__recurring_next_date
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__recurring_next_date
-msgid "Date of Next Invoice"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Date of next invoice"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__daily
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__daily
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__recurring_rule_type__daily
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__termination_notice_rule_type__daily
-#: model:ir.model.fields.selection,name:contract.selection__contract_contract__recurring_rule_type__daily
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__auto_renew_rule_type__daily
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__recurring_rule_type__daily
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__termination_notice_rule_type__daily
-#: model:ir.model.fields.selection,name:contract.selection__contract_recurrency_basic_mixin__recurring_rule_type__daily
-#: model:ir.model.fields.selection,name:contract.selection__contract_recurrency_mixin__recurring_rule_type__daily
-#: model:ir.model.fields.selection,name:contract.selection__contract_template__recurring_rule_type__daily
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__auto_renew_rule_type__daily
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__recurring_rule_type__daily
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__termination_notice_rule_type__daily
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Day(s)"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_abstract_contract_line__note_invoicing_mode
-#: model:ir.model.fields,help:contract.field_contract_line__note_invoicing_mode
-#: model:ir.model.fields,help:contract.field_contract_template_line__note_invoicing_mode
-msgid ""
-"Defines when the Note is invoiced:\n"
-"- With previous line: If the previous line can be invoiced.\n"
-"- With next line: If the next line can be invoiced.\n"
-"- Custom: Depending on the recurrence to be define."
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
-#: model:ir.model.fields,field_description:contract.field_contract_line__name
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__name
-#: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Description"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__discount
-#: model:ir.model.fields,field_description:contract.field_contract_line__discount
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__discount
-msgid "Discount (%)"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/abstract_contract_line.py:0
-#, python-format
-msgid "Discount should be less or equal to 100"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_abstract_contract_line__discount
-#: model:ir.model.fields,help:contract.field_contract_line__discount
-#: model:ir.model.fields,help:contract.field_contract_template_line__discount
-msgid ""
-"Discount that is applied in generated invoices. It should be less or equal "
-"to 100"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__display_name
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__display_name
-#: model:ir.model.fields,field_description:contract.field_contract_contract__display_name
-#: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__display_name
-#: model:ir.model.fields,field_description:contract.field_contract_line__display_name
-#: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
-#: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
-#: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
-#: model:ir.model.fields,field_description:contract.field_contract_template__display_name
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__display_name
-#: model:ir.model.fields,field_description:contract.field_contract_terminate_reason__display_name
-msgid "Display Name"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__display_type
-#: model:ir.model.fields,field_description:contract.field_contract_line__display_type
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__display_type
-msgid "Display Type"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_search_view
-msgid "Finished"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__fiscal_position_id
-msgid "Fiscal Position"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__message_follower_ids
-msgid "Followers"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__message_channel_ids
-msgid "Followers (Channels)"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__message_partner_ids
-msgid "Followers (Partners)"
-msgstr ""
-
-#. module: contract
-#: model:ir.actions.server,name:contract.contract_cron_for_invoice_ir_actions_server
-#: model:ir.cron,cron_name:contract.contract_cron_for_invoice
-#: model:ir.cron,name:contract.contract_cron_for_invoice
-msgid "Generate Recurring Invoices from Contracts"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__group_id
-msgid "Group"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_search_view
-msgid "Group By..."
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__id
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__id
-#: model:ir.model.fields,field_description:contract.field_contract_contract__id
-#: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__id
-#: model:ir.model.fields,field_description:contract.field_contract_line__id
-#: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
-#: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
-#: model:ir.model.fields,field_description:contract.field_contract_tag__id
-#: model:ir.model.fields,field_description:contract.field_contract_template__id
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__id
-#: model:ir.model.fields,field_description:contract.field_contract_terminate_reason__id
-msgid "ID"
-msgstr "ID"
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__activity_exception_icon
-msgid "Icon"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_contract__activity_exception_icon
-msgid "Icon to indicate an exception activity."
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_res_company__create_new_line_at_contract_line_renew
-#: model:ir.model.fields,help:contract.field_res_config_settings__create_new_line_at_contract_line_renew
-msgid ""
-"If checked, a new line will be generated at contract line renew and linked "
-"to the original one as successor. The default behavior is to extend the end "
-"date of the contract by a new subscription period"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_contract__message_needaction
-#: model:ir.model.fields,help:contract.field_contract_contract__message_unread
-msgid "If checked, new messages require your attention."
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_contract__message_has_error
-#: model:ir.model.fields,help:contract.field_contract_contract__message_has_sms_error
-msgid "If checked, some messages have a delivery error."
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_abstract_contract_line__automatic_price
-#: model:ir.model.fields,help:contract.field_contract_line__automatic_price
-#: model:ir.model.fields,help:contract.field_contract_template_line__automatic_price
-msgid ""
-"If this is marked, the price will be obtained automatically applying the "
-"pricelist to the product. If not, you will be able to introduce a manual "
-"price"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_line__successor_contract_line_id
-msgid ""
-"In case of restart after suspension, this field contain the new contract "
-"line created."
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_search_view
-msgid "In progress"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__state__in-progress
-msgid "In-progress"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__invoice_count
-msgid "Invoice Count"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__invoice_date
-msgid "Invoice Date"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__recurring_interval
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__recurring_interval
-#: model:ir.model.fields,field_description:contract.field_contract_contract__recurring_interval
-#: model:ir.model.fields,field_description:contract.field_contract_line__recurring_interval
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__recurring_interval
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__recurring_interval
-#: model:ir.model.fields,field_description:contract.field_contract_template__recurring_interval
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__recurring_interval
-msgid "Invoice Every"
-msgstr ""
-
-#. module: contract
-#: model:mail.message.subtype,name:contract.mail_message_subtype_invoice_created
-msgid "Invoice created"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_abstract_contract__recurring_interval
-#: model:ir.model.fields,help:contract.field_contract_abstract_contract_line__recurring_interval
-#: model:ir.model.fields,help:contract.field_contract_contract__recurring_interval
-#: model:ir.model.fields,help:contract.field_contract_line__recurring_interval
-#: model:ir.model.fields,help:contract.field_contract_recurrency_basic_mixin__recurring_interval
-#: model:ir.model.fields,help:contract.field_contract_recurrency_mixin__recurring_interval
-#: model:ir.model.fields,help:contract.field_contract_template__recurring_interval
-#: model:ir.model.fields,help:contract.field_contract_template_line__recurring_interval
-msgid "Invoice every (Days/Week/Month/Year)"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/wizards/contract_manually_create_invoice.py:0
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-#, python-format
-msgid "Invoices"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__invoice_partner_id
-msgid "Invoicing contact"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__recurring_invoicing_offset
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__recurring_invoicing_offset
-#: model:ir.model.fields,field_description:contract.field_contract_contract__recurring_invoicing_offset
-#: model:ir.model.fields,field_description:contract.field_contract_line__recurring_invoicing_offset
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__recurring_invoicing_offset
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__recurring_invoicing_offset
-#: model:ir.model.fields,field_description:contract.field_contract_template__recurring_invoicing_offset
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__recurring_invoicing_offset
-msgid "Invoicing offset"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__recurring_invoicing_type
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__recurring_invoicing_type
-#: model:ir.model.fields,field_description:contract.field_contract_contract__recurring_invoicing_type
-#: model:ir.model.fields,field_description:contract.field_contract_line__recurring_invoicing_type
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__recurring_invoicing_type
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__recurring_invoicing_type
-#: model:ir.model.fields,field_description:contract.field_contract_template__recurring_invoicing_type
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__recurring_invoicing_type
-msgid "Invoicing type"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__message_is_follower
-msgid "Is Follower"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__is_recurring_note
-#: model:ir.model.fields,field_description:contract.field_contract_line__is_recurring_note
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__is_recurring_note
-msgid "Is Recurring Note"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_wizard_stop_form_view
-msgid "Is suspension without end date"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__journal_id
-#: model:ir.model.fields,field_description:contract.field_contract_contract__journal_id
-#: model:ir.model.fields,field_description:contract.field_contract_template__journal_id
-#: model_terms:ir.ui.view,arch_db:contract.contract_template_search_view
-msgid "Journal"
-msgstr ""
-
-#. module: contract
-#: model:ir.model,name:contract.model_account_move
-msgid "Journal Entries"
-msgstr ""
-
-#. module: contract
-#: model:ir.model,name:contract.model_account_move_line
-msgid "Journal Item"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__last_date_invoiced
-#: model:ir.model.fields,field_description:contract.field_contract_contract__last_date_invoiced
-#: model:ir.model.fields,field_description:contract.field_contract_line__last_date_invoiced
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__last_date_invoiced
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__last_date_invoiced
-#, fuzzy
-msgid "Last Date Invoiced"
-msgstr "Última actualización en"
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract____last_update
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line____last_update
-#: model:ir.model.fields,field_description:contract.field_contract_contract____last_update
-#: model:ir.model.fields,field_description:contract.field_contract_contract_terminate____last_update
-#: model:ir.model.fields,field_description:contract.field_contract_line____last_update
-#: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
-#: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
-#: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
-#: model:ir.model.fields,field_description:contract.field_contract_template____last_update
-#: model:ir.model.fields,field_description:contract.field_contract_template_line____last_update
-#: model:ir.model.fields,field_description:contract.field_contract_terminate_reason____last_update
-msgid "Last Modified on"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__write_uid
-#: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__write_uid
-#: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
-#: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
-#: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
-#: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
-#: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
-#: model:ir.model.fields,field_description:contract.field_contract_terminate_reason__write_uid
-msgid "Last Updated by"
-msgstr "Última actualización por"
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__write_date
-#: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__write_date
-#: model:ir.model.fields,field_description:contract.field_contract_line__write_date
-#: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
-#: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
-#: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
-#: model:ir.model.fields,field_description:contract.field_contract_template__write_date
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
-#: model:ir.model.fields,field_description:contract.field_contract_terminate_reason__write_date
-msgid "Last Updated on"
-msgstr "Última actualización en"
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
-msgid "Legend (for the markers inside invoice lines description)"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__message_main_attachment_id
-msgid "Main Attachment"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__manual_currency_id
-msgid "Manual Currency"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_line__manual_renew_needed
-#: model:ir.model.fields,field_description:contract.field_contract_line_wizard__manual_renew_needed
-msgid "Manual renew needed"
-msgstr ""
-
-#. module: contract
-#: model:ir.actions.act_window,name:contract.purchase_contract_manually_create_invoice_act_window
-#: model:ir.ui.menu,name:contract.purchase_contract_manually_create_invoice_menu
-msgid "Manually Invoice Purchase Contracts"
-msgstr ""
-
-#. module: contract
-#: model:ir.actions.act_window,name:contract.sale_contract_manually_create_invoice_act_window
-#: model:ir.ui.menu,name:contract.sale_contract_manually_create_invoice_menu
-msgid "Manually Invoice Sale Contracts"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_abstract_contract__line_recurrence
-#: model:ir.model.fields,help:contract.field_contract_contract__line_recurrence
-#: model:ir.model.fields,help:contract.field_contract_template__line_recurrence
-msgid ""
-"Mark this check if you want to control recurrrence at line level instead of "
-"all together for the whole contract."
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__message_has_error
-msgid "Message Delivery error"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__message_ids
-msgid "Messages"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__recurring_rule_type__monthly
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__termination_notice_rule_type__monthly
-#: model:ir.model.fields.selection,name:contract.selection__contract_contract__recurring_rule_type__monthly
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__auto_renew_rule_type__monthly
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__recurring_rule_type__monthly
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__termination_notice_rule_type__monthly
-#: model:ir.model.fields.selection,name:contract.selection__contract_recurrency_basic_mixin__recurring_rule_type__monthly
-#: model:ir.model.fields.selection,name:contract.selection__contract_recurrency_mixin__recurring_rule_type__monthly
-#: model:ir.model.fields.selection,name:contract.selection__contract_template__recurring_rule_type__monthly
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__auto_renew_rule_type__monthly
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__recurring_rule_type__monthly
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__termination_notice_rule_type__monthly
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Month(s)"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthlylastday
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__recurring_rule_type__monthlylastday
-#: model:ir.model.fields.selection,name:contract.selection__contract_contract__recurring_rule_type__monthlylastday
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__recurring_rule_type__monthlylastday
-#: model:ir.model.fields.selection,name:contract.selection__contract_recurrency_basic_mixin__recurring_rule_type__monthlylastday
-#: model:ir.model.fields.selection,name:contract.selection__contract_recurrency_mixin__recurring_rule_type__monthlylastday
-#: model:ir.model.fields.selection,name:contract.selection__contract_template__recurring_rule_type__monthlylastday
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__recurring_rule_type__monthlylastday
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Month(s) last day"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/controllers/main.py:0
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__name
-#: model:ir.model.fields,field_description:contract.field_contract_contract__name
-#: model:ir.model.fields,field_description:contract.field_contract_tag__name
-#: model:ir.model.fields,field_description:contract.field_contract_template__name
-#: model:ir.model.fields,field_description:contract.field_contract_terminate_reason__name
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_tree_view
-#, python-format
-msgid "Name"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__activity_date_deadline
-msgid "Next Activity Deadline"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__activity_summary
-msgid "Next Activity Summary"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__activity_type_id
-msgid "Next Activity Type"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_search_view
-msgid "Next Invoice"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_line_wizard__recurring_next_date
-msgid "Next Invoice Date"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__next_period_date_end
-#: model:ir.model.fields,field_description:contract.field_contract_line__next_period_date_end
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__next_period_date_end
-msgid "Next Period End"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__next_period_date_start
-#: model:ir.model.fields,field_description:contract.field_contract_line__next_period_date_start
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__next_period_date_start
-msgid "Next Period Start"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__display_type__line_note
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__display_type__line_note
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__display_type__line_note
-#: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
-msgid "Note"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__note_invoicing_mode
-#: model:ir.model.fields,field_description:contract.field_contract_line__note_invoicing_mode
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__note_invoicing_mode
-msgid "Note Invoicing Mode"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__note
-msgid "Notes"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__message_needaction_counter
-msgid "Number of Actions"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_abstract_contract__recurring_invoicing_offset
-#: model:ir.model.fields,help:contract.field_contract_abstract_contract_line__recurring_invoicing_offset
-#: model:ir.model.fields,help:contract.field_contract_contract__recurring_invoicing_offset
-#: model:ir.model.fields,help:contract.field_contract_line__recurring_invoicing_offset
-#: model:ir.model.fields,help:contract.field_contract_recurrency_basic_mixin__recurring_invoicing_offset
-#: model:ir.model.fields,help:contract.field_contract_recurrency_mixin__recurring_invoicing_offset
-#: model:ir.model.fields,help:contract.field_contract_template__recurring_invoicing_offset
-#: model:ir.model.fields,help:contract.field_contract_template_line__recurring_invoicing_offset
-msgid ""
-"Number of days to offset the invoice from the period end date (in post-paid "
-"mode) or start date (in pre-paid mode)."
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__message_has_error_counter
-msgid "Number of errors"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_contract__message_needaction_counter
-msgid "Number of messages which requires an action"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_contract__message_has_error_counter
-msgid "Number of messages with delivery error"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_contract__message_unread_counter
-msgid "Number of unread messages"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_account_move__old_contract_id
-msgid "Old Contract"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Other Information"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__partner_id
-#: model:ir.model.fields,field_description:contract.field_contract_contract__partner_id
-#: model:ir.model.fields,field_description:contract.field_contract_template__partner_id
-msgid "Partner"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__payment_term_id
-msgid "Payment Terms"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_tree_view
-msgid "Plan Start"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_line__is_plan_successor_allowed
-msgid "Plan successor allowed?"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid "Plan successor not allowed for this line"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract.py:0
-#, python-format
-msgid "Please define a %s journal for the company '%s'."
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__access_url
-msgid "Portal Access URL"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_invoicing_type__post-paid
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__recurring_invoicing_type__post-paid
-#: model:ir.model.fields.selection,name:contract.selection__contract_contract__recurring_invoicing_type__post-paid
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__recurring_invoicing_type__post-paid
-#: model:ir.model.fields.selection,name:contract.selection__contract_recurrency_basic_mixin__recurring_invoicing_type__post-paid
-#: model:ir.model.fields.selection,name:contract.selection__contract_recurrency_mixin__recurring_invoicing_type__post-paid
-#: model:ir.model.fields.selection,name:contract.selection__contract_template__recurring_invoicing_type__post-paid
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__recurring_invoicing_type__post-paid
-msgid "Post-paid"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_invoicing_type__pre-paid
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__recurring_invoicing_type__pre-paid
-#: model:ir.model.fields.selection,name:contract.selection__contract_contract__recurring_invoicing_type__pre-paid
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__recurring_invoicing_type__pre-paid
-#: model:ir.model.fields.selection,name:contract.selection__contract_recurrency_basic_mixin__recurring_invoicing_type__pre-paid
-#: model:ir.model.fields.selection,name:contract.selection__contract_recurrency_mixin__recurring_invoicing_type__pre-paid
-#: model:ir.model.fields.selection,name:contract.selection__contract_template__recurring_invoicing_type__pre-paid
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__recurring_invoicing_type__pre-paid
-msgid "Pre-paid"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_line__predecessor_contract_line_id
-msgid "Predecessor Contract Line"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Preview"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
-#: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
-#: model:ir.model.fields,field_description:contract.field_contract_template__pricelist_id
-#: model_terms:ir.ui.view,arch_db:contract.contract_template_search_view
-msgid "Pricelist"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__product_id
-#: model:ir.model.fields,field_description:contract.field_contract_line__product_id
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__product_id
-msgid "Product"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_res_partner__purchase_contract_count
-#: model:ir.model.fields,field_description:contract.field_res_users__purchase_contract_count
-#: model_terms:ir.ui.view,arch_db:contract.view_partner_form
-msgid "Purchase Contracts"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
-#: model:ir.model.fields,field_description:contract.field_contract_line__quantity
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
-msgid "Quantity"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__quarterly
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__recurring_rule_type__quarterly
-#: model:ir.model.fields.selection,name:contract.selection__contract_contract__recurring_rule_type__quarterly
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__recurring_rule_type__quarterly
-#: model:ir.model.fields.selection,name:contract.selection__contract_recurrency_basic_mixin__recurring_rule_type__quarterly
-#: model:ir.model.fields.selection,name:contract.selection__contract_recurrency_mixin__recurring_rule_type__quarterly
-#: model:ir.model.fields.selection,name:contract.selection__contract_template__recurring_rule_type__quarterly
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__recurring_rule_type__quarterly
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Quarter(s)"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__recurring_rule_type
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__recurring_rule_type
-#: model:ir.model.fields,field_description:contract.field_contract_contract__recurring_rule_type
-#: model:ir.model.fields,field_description:contract.field_contract_line__recurring_rule_type
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__recurring_rule_type
-#: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__recurring_rule_type
-#: model:ir.model.fields,field_description:contract.field_contract_template__recurring_rule_type
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__recurring_rule_type
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Recurrence"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__line_recurrence
-#: model:ir.model.fields,field_description:contract.field_contract_contract__line_recurrence
-#: model:ir.model.fields,field_description:contract.field_contract_template__line_recurrence
-msgid "Recurrence at line level?"
-msgstr ""
-
-#. module: contract
-#: model:ir.model,name:contract.model_contract_recurrency_mixin
-msgid "Recurrency mixin for contract models"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Recurring Invoices"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/controllers/main.py:0
-#: model:ir.model.fields,field_description:contract.field_contract_contract__code
-#: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
-#, python-format
-msgid "Reference"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_tree_view
-msgid "Renew"
-msgstr ""
-
-#. module: contract
-#: model:ir.actions.server,name:contract.contract_line_cron_for_renew_ir_actions_server
-#: model:ir.cron,cron_name:contract.contract_line_cron_for_renew
-#: model:ir.cron,name:contract.contract_line_cron_for_renew
-msgid "Renew Contract lines"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__auto_renew_interval
-#: model:ir.model.fields,field_description:contract.field_contract_line__auto_renew_interval
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__auto_renew_interval
-msgid "Renew Every"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_abstract_contract_line__auto_renew_interval
-#: model:ir.model.fields,help:contract.field_contract_line__auto_renew_interval
-#: model:ir.model.fields,help:contract.field_contract_template_line__auto_renew_interval
-msgid "Renew every (Days/Week/Month/Year)"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__auto_renew_rule_type
-#: model:ir.model.fields,field_description:contract.field_contract_line__auto_renew_rule_type
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__auto_renew_rule_type
-msgid "Renewal type"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__terminate_comment_required
-#: model:ir.model.fields,field_description:contract.field_contract_terminate_reason__terminate_comment_required
-msgid "Require a termination comment"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__user_id
-msgid "Responsible"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__activity_user_id
-msgid "Responsible User"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__message_has_sms_error
-msgid "SMS Delivery error"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_res_partner__sale_contract_count
-#: model:ir.model.fields,field_description:contract.field_res_users__sale_contract_count
-#: model_terms:ir.ui.view,arch_db:contract.view_partner_form
-msgid "Sale Contracts"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__display_type__line_section
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__display_type__line_section
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__display_type__line_section
-#: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
-msgid "Section"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__access_token
-msgid "Security Token"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__semesterly
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__recurring_rule_type__semesterly
-#: model:ir.model.fields.selection,name:contract.selection__contract_contract__recurring_rule_type__semesterly
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__recurring_rule_type__semesterly
-#: model:ir.model.fields.selection,name:contract.selection__contract_recurrency_basic_mixin__recurring_rule_type__semesterly
-#: model:ir.model.fields.selection,name:contract.selection__contract_recurrency_mixin__recurring_rule_type__semesterly
-#: model:ir.model.fields.selection,name:contract.selection__contract_template__recurring_rule_type__semesterly
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__recurring_rule_type__semesterly
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Semester(s)"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Send by Email"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
-#: model:ir.model.fields,field_description:contract.field_contract_line__sequence
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__sequence
-msgid "Sequence"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_abstract_contract_line__sequence
-#: model:ir.model.fields,help:contract.field_contract_line__sequence
-#: model:ir.model.fields,help:contract.field_contract_template_line__sequence
-msgid "Sequence of the contract line when displaying contracts"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.view_partner_form
-msgid "Show the purchase contracts for this partner"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.view_partner_form
-msgid "Show the sale contracts for this partner"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__specific_price
-#: model:ir.model.fields,field_description:contract.field_contract_line__specific_price
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__specific_price
-msgid "Specific Price"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_abstract_contract__recurring_rule_type
-#: model:ir.model.fields,help:contract.field_contract_abstract_contract_line__recurring_rule_type
-#: model:ir.model.fields,help:contract.field_contract_contract__recurring_rule_type
-#: model:ir.model.fields,help:contract.field_contract_line__recurring_rule_type
-#: model:ir.model.fields,help:contract.field_contract_recurrency_basic_mixin__recurring_rule_type
-#: model:ir.model.fields,help:contract.field_contract_recurrency_mixin__recurring_rule_type
-#: model:ir.model.fields,help:contract.field_contract_template__recurring_rule_type
-#: model:ir.model.fields,help:contract.field_contract_template_line__recurring_rule_type
-msgid "Specify Interval for automatic invoice generation."
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_abstract_contract_line__auto_renew_rule_type
-#: model:ir.model.fields,help:contract.field_contract_line__auto_renew_rule_type
-#: model:ir.model.fields,help:contract.field_contract_template_line__auto_renew_rule_type
-msgid "Specify Interval for automatic renewal."
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_abstract_contract__recurring_invoicing_type
-#: model:ir.model.fields,help:contract.field_contract_abstract_contract_line__recurring_invoicing_type
-#: model:ir.model.fields,help:contract.field_contract_contract__recurring_invoicing_type
-#: model:ir.model.fields,help:contract.field_contract_line__recurring_invoicing_type
-#: model:ir.model.fields,help:contract.field_contract_recurrency_basic_mixin__recurring_invoicing_type
-#: model:ir.model.fields,help:contract.field_contract_recurrency_mixin__recurring_invoicing_type
-#: model:ir.model.fields,help:contract.field_contract_template__recurring_invoicing_type
-#: model:ir.model.fields,help:contract.field_contract_template_line__recurring_invoicing_type
-msgid ""
-"Specify if the invoice must be generated at the beginning (pre-paid) or end "
-"(post-paid) of the period."
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_line__state
-msgid "State"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_contract__activity_state
-msgid ""
-"Status based on activities\n"
-"Overdue: Due date is already passed\n"
-"Today: Activity date is today\n"
-"Planned: Future activities."
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_tree_view
-msgid "Stop"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_wizard_stop_form_view
-msgid "Stop Date"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_tree_view
-msgid "Stop Plan Successor"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_line__is_stop_allowed
-msgid "Stop allowed?"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid "Stop not allowed for this line"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_line__is_stop_plan_successor_allowed
-msgid "Stop/Plan successor allowed?"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid "Stop/Plan successor not allowed for this line"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__price_subtotal
-#: model:ir.model.fields,field_description:contract.field_contract_line__price_subtotal
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__price_subtotal
-msgid "Sub Total"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_line__successor_contract_line_id
-msgid "Successor Contract Line"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__contract_type__purchase
-#: model:ir.model.fields.selection,name:contract.selection__contract_contract__contract_type__purchase
-#: model:ir.model.fields.selection,name:contract.selection__contract_manually_create_invoice__contract_type__purchase
-#: model:ir.model.fields.selection,name:contract.selection__contract_template__contract_type__purchase
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_supplier_form_view
-msgid "Supplier"
-msgstr ""
-
-#. module: contract
-#: model:ir.actions.act_window,name:contract.action_supplier_contract
-#: model:ir.ui.menu,name:contract.menu_contract_contract_supplier
-msgid "Supplier Contracts"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_wizard_stop_plan_successor_form_view
-msgid "Suspension End Date"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_wizard_stop_plan_successor_form_view
-msgid "Suspension Start Date"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__tag_ids
-msgid "Tags"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_abstract_contract_line__display_type
-#: model:ir.model.fields,help:contract.field_contract_line__display_type
-#: model:ir.model.fields,help:contract.field_contract_template_line__display_type
-msgid "Technical field for UX purpose."
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract.py:0
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
-#, python-format
-msgid "Terminate Contract"
-msgstr ""
-
-#. module: contract
-#: model:ir.model,name:contract.model_contract_contract_terminate
-msgid "Terminate Contract Wizard"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__is_terminated
-msgid "Terminated"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__terminate_comment
-#: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__terminate_comment
-msgid "Termination Comment"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__terminate_date
-#: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__terminate_date
-msgid "Termination Date"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__termination_notice_interval
-#: model:ir.model.fields,field_description:contract.field_contract_line__termination_notice_interval
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__termination_notice_interval
-msgid "Termination Notice Before"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__termination_notice_rule_type
-#: model:ir.model.fields,field_description:contract.field_contract_line__termination_notice_rule_type
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__termination_notice_rule_type
-msgid "Termination Notice type"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__terminate_reason_id
-#: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__terminate_reason_id
-msgid "Termination Reason"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_line__termination_notice_date
-msgid "Termination notice date"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "This contract was terminated for the reason"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_line__manual_renew_needed
-#: model:ir.model.fields,help:contract.field_contract_line_wizard__manual_renew_needed
-msgid ""
-"This flag is used to make a difference between a definitive stopand "
-"temporary one for which a user is not able to plan asuccessor in advance"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__state__to-renew
-msgid "To renew"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_contract__activity_exception_decoration
-msgid "Type of the exception activity on record."
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_line__is_un_cancel_allowed
-msgid "Un-Cancel allowed?"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_tree_view
-msgid "Un-cancel"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid "Un-cancel not allowed for this line"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__price_unit
-#: model:ir.model.fields,field_description:contract.field_contract_line__price_unit
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__price_unit
-msgid "Unit Price"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__uom_id
-#: model:ir.model.fields,field_description:contract.field_contract_line__uom_id
-#: model:ir.model.fields,field_description:contract.field_contract_template_line__uom_id
-msgid "Unit of Measure"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__message_unread
-msgid "Unread Messages"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__message_unread_counter
-msgid "Unread Messages Counter"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__state__upcoming
-msgid "Upcoming"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__state__upcoming-close
-msgid "Upcoming Close"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Update Termination Details"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
-msgid "VAT:"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_wizard_plan_successor_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_wizard_stop_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_wizard_stop_plan_successor_form_view
-#: model_terms:ir.ui.view,arch_db:contract.contract_line_wizard_uncancel_form_view
-msgid "Validate"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,field_description:contract.field_contract_contract__website_message_ids
-msgid "Website Messages"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields,help:contract.field_contract_contract__website_message_ids
-msgid "Website communication history"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__weekly
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__weekly
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__recurring_rule_type__weekly
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__termination_notice_rule_type__weekly
-#: model:ir.model.fields.selection,name:contract.selection__contract_contract__recurring_rule_type__weekly
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__auto_renew_rule_type__weekly
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__recurring_rule_type__weekly
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__termination_notice_rule_type__weekly
-#: model:ir.model.fields.selection,name:contract.selection__contract_recurrency_basic_mixin__recurring_rule_type__weekly
-#: model:ir.model.fields.selection,name:contract.selection__contract_recurrency_mixin__recurring_rule_type__weekly
-#: model:ir.model.fields.selection,name:contract.selection__contract_template__recurring_rule_type__weekly
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__auto_renew_rule_type__weekly
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__recurring_rule_type__weekly
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__termination_notice_rule_type__weekly
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Week(s)"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__note_invoicing_mode__with_next_line
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__note_invoicing_mode__with_next_line
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__note_invoicing_mode__with_next_line
-msgid "With next line"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__note_invoicing_mode__with_previous_line
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__note_invoicing_mode__with_previous_line
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__note_invoicing_mode__with_previous_line
-msgid "With previous line"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.view_res_partner_filter
-msgid "With running contracts"
-msgstr ""
-
-#. module: contract
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__yearly
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__yearly
-#: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__recurring_rule_type__yearly
-#: model:ir.model.fields.selection,name:contract.selection__contract_contract__recurring_rule_type__yearly
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__auto_renew_rule_type__yearly
-#: model:ir.model.fields.selection,name:contract.selection__contract_line__recurring_rule_type__yearly
-#: model:ir.model.fields.selection,name:contract.selection__contract_recurrency_basic_mixin__recurring_rule_type__yearly
-#: model:ir.model.fields.selection,name:contract.selection__contract_recurrency_mixin__recurring_rule_type__yearly
-#: model:ir.model.fields.selection,name:contract.selection__contract_template__recurring_rule_type__yearly
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__auto_renew_rule_type__yearly
-#: model:ir.model.fields.selection,name:contract.selection__contract_template_line__recurring_rule_type__yearly
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Year(s)"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract.py:0
-#, python-format
-msgid "You are not allowed to terminate contracts."
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid "You can't delay a contract line invoiced at least one time."
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid ""
-"You can't have a date of next invoice anterior to the start of the contract "
-"line '%s'"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid ""
-"You can't have the end date before the date of last invoice for the contract "
-"line '%s'"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid ""
-"You can't have the next invoice date before the date of last invoice for the "
-"contract line '%s'"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid ""
-"You can't have the start date after the date of last invoice for the "
-"contract line '%s'"
-msgstr ""
-
-#. module: contract
-#: code:addons/contract/models/contract_line.py:0
-#, python-format
-msgid "You must supply a date of next invoice for contract line '%s'"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "e.g. Contract XYZ"
-msgstr ""
-
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "on"
-msgstr ""
diff --git a/contract/i18n/es_MX.po b/contract/i18n/es_MX.po
index 473dc3f66..778fad380 100644
--- a/contract/i18n/es_MX.po
+++ b/contract/i18n/es_MX.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -468,6 +490,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -480,6 +503,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -513,13 +541,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -684,6 +712,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -739,6 +778,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -752,6 +792,7 @@ msgstr "Creado por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -793,7 +834,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -875,9 +919,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -911,6 +958,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -977,6 +1025,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1172,6 +1221,7 @@ msgstr "Ultima actualización en"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1187,6 +1237,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1200,6 +1251,7 @@ msgstr "Ultima actualización por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1207,11 +1259,6 @@ msgstr "Ultima actualización por"
 msgid "Last Updated on"
 msgstr "Ultima actualización en"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1265,6 +1312,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1491,6 +1544,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1517,6 +1575,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1664,6 +1723,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/es_PY.po b/contract/i18n/es_PY.po
index cd2c0ff95..6c7044752 100644
--- a/contract/i18n/es_PY.po
+++ b/contract/i18n/es_PY.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1167,6 +1216,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1182,6 +1232,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1195,6 +1246,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1202,11 +1254,6 @@ msgstr ""
 msgid "Last Updated on"
 msgstr ""
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1260,6 +1307,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1486,6 +1539,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1512,6 +1570,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1659,6 +1718,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/es_VE.po b/contract/i18n/es_VE.po
index aa990c639..dba3b73c0 100644
--- a/contract/i18n/es_VE.po
+++ b/contract/i18n/es_VE.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -736,6 +775,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -749,6 +789,7 @@ msgstr "Creado por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -790,7 +831,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -872,9 +916,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -908,6 +955,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -974,6 +1022,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1169,6 +1218,7 @@ msgstr "Ultima actualización en"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1184,6 +1234,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1197,6 +1248,7 @@ msgstr "Ultima actualización por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1204,11 +1256,6 @@ msgstr "Ultima actualización por"
 msgid "Last Updated on"
 msgstr "Ultima actualización en"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1262,6 +1309,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1488,6 +1541,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1514,6 +1572,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1661,6 +1720,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/et.po b/contract/i18n/et.po
index e573804fd..62684cab1 100644
--- a/contract/i18n/et.po
+++ b/contract/i18n/et.po
@@ -18,6 +18,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -92,6 +102,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -169,6 +186,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -465,6 +487,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -477,6 +500,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -510,13 +538,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -680,6 +708,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1167,6 +1216,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1182,6 +1232,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1195,6 +1246,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1202,11 +1254,6 @@ msgstr ""
 msgid "Last Updated on"
 msgstr ""
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1260,6 +1307,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1486,6 +1539,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1512,6 +1570,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1659,6 +1718,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/eu.po b/contract/i18n/eu.po
index 599e61348..f2b5a8324 100644
--- a/contract/i18n/eu.po
+++ b/contract/i18n/eu.po
@@ -18,6 +18,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -92,6 +102,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -169,6 +186,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -465,6 +487,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -477,6 +500,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -510,13 +538,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -680,6 +708,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -734,6 +773,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -747,6 +787,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -788,7 +829,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -870,9 +914,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -906,6 +953,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -972,6 +1020,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1166,6 +1215,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1181,6 +1231,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1194,6 +1245,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1201,11 +1253,6 @@ msgstr ""
 msgid "Last Updated on"
 msgstr ""
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1259,6 +1306,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1485,6 +1538,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1511,6 +1569,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1658,6 +1717,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/fa.po b/contract/i18n/fa.po
index aaca8af45..69ff38154 100644
--- a/contract/i18n/fa.po
+++ b/contract/i18n/fa.po
@@ -18,6 +18,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=1; plural=0;\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -92,6 +102,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -169,6 +186,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -465,6 +487,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -477,6 +500,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -510,13 +538,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -680,6 +708,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr "ایجاد شده توسط"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1168,6 +1217,7 @@ msgstr "آخرین به روز رسانی در"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1183,6 +1233,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1196,6 +1247,7 @@ msgstr "آخرین به روز رسانی توسط"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1203,11 +1255,6 @@ msgstr "آخرین به روز رسانی توسط"
 msgid "Last Updated on"
 msgstr "آخرین به روز رسانی در"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1261,6 +1308,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1487,6 +1540,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1513,6 +1571,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1660,6 +1719,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/fi.po b/contract/i18n/fi.po
index af762bfa2..07ff3c898 100644
--- a/contract/i18n/fi.po
+++ b/contract/i18n/fi.po
@@ -19,6 +19,16 @@ msgstr ""
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
 "X-Generator: Weblate 3.10\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr "${object.company_id.name} Sopimus (Viite ${object.name or 'n/a'})"
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -178,6 +195,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr "<strong>Kuvaus</strong>"
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 #, fuzzy
@@ -481,6 +503,7 @@ msgstr "Kontakti"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -493,6 +516,11 @@ msgstr "Sopimus"
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 #, fuzzy
@@ -526,16 +554,16 @@ msgstr "Sopimus - luo lasku manuaalisesti"
 msgid "Contract Manually Create Invoice Wizard"
 msgstr "Ohjattu manuaalinen laskun luonti sopimukselta"
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 msgid "Contract Name"
 msgstr "Sopimuksen nimi"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -722,6 +750,17 @@ msgstr ""
 "Sopimus laskutettu manuaalisesti: <a href=\"#\" data-oe-model=\"%s\" data-oe-"
 "id=\"%s\">Lasku</a>"
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -777,6 +816,7 @@ msgstr "Luo laskuja"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -790,6 +830,7 @@ msgstr "Luonut"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -832,7 +873,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -914,9 +958,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "Kuvaus"
 
@@ -951,6 +998,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -1018,6 +1066,7 @@ msgstr "Ryhmittele..."
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1219,6 +1268,7 @@ msgstr "Viimeksi laskutettu"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1234,6 +1284,7 @@ msgstr "Viimeksi muokattu"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1247,6 +1298,7 @@ msgstr "Viimeksi päivittänyt"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1254,11 +1306,6 @@ msgstr "Viimeksi päivittänyt"
 msgid "Last Updated on"
 msgstr "Viimeksi päivitetty"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1312,6 +1359,12 @@ msgstr "Virhe viestin toimituksessa"
 msgid "Messages"
 msgstr "Viestit"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1541,6 +1594,11 @@ msgstr "Edeltävä sopimusrivi"
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1567,6 +1625,7 @@ msgstr "Ostosopimukset"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr "Määrä"
 
@@ -1715,6 +1774,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr "Lähetä sähköpostilla"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/fr.po b/contract/i18n/fr.po
index 9f2bcb70a..ef7f58794 100644
--- a/contract/i18n/fr.po
+++ b/contract/i18n/fr.po
@@ -19,6 +19,16 @@ msgstr ""
 "Plural-Forms: nplurals=2; plural=n > 1;\n"
 "X-Generator: Weblate 3.10\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr "${object.company_id.name} Contrat (Ref ${object.name or 'n/a'})"
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -179,6 +196,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr "<strong>Description</strong>"
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 #, fuzzy
@@ -479,6 +501,7 @@ msgstr "Contact"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -491,6 +514,11 @@ msgstr "Contrat"
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -523,16 +551,16 @@ msgstr "Contrat - Créer les factures manuellement"
 msgid "Contract Manually Create Invoice Wizard"
 msgstr "Assistant Facturation manuelle des contrats"
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 msgid "Contract Name"
 msgstr "Nom du contrat"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -721,6 +749,17 @@ msgstr ""
 "Contrat facturé manuellement : <a href=\"#\" data-oe-model=\"%s\" data-oe-id="
 "\"%s\">Invoice</a>"
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -775,6 +814,7 @@ msgstr "Créer les factures"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -788,6 +828,7 @@ msgstr "Créé par"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -830,7 +871,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -912,9 +956,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "Description"
 
@@ -950,6 +997,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -1017,6 +1065,7 @@ msgstr "Grouper par..."
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1220,6 +1269,7 @@ msgstr "Dernière date facturée"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1235,6 +1285,7 @@ msgstr "Dernière modification le"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1248,6 +1299,7 @@ msgstr "Dernière mise à jour par"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1255,11 +1307,6 @@ msgstr "Dernière mise à jour par"
 msgid "Last Updated on"
 msgstr "Dernière mise à jour le"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1314,6 +1361,12 @@ msgstr "Erreur de livraison de message"
 msgid "Messages"
 msgstr "Messages"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1544,6 +1597,11 @@ msgstr "Ligne de contrat précédentes"
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1570,6 +1628,7 @@ msgstr "Contrats d'achat"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr "Quantité"
 
@@ -1718,6 +1777,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr "Envoyé par courriel"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/fr_CA.po b/contract/i18n/fr_CA.po
index 0c82c4e6d..6e93a99ea 100644
--- a/contract/i18n/fr_CA.po
+++ b/contract/i18n/fr_CA.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n > 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -736,6 +775,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -749,6 +789,7 @@ msgstr "Créé par"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -790,7 +831,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -872,9 +916,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -908,6 +955,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -975,6 +1023,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1170,6 +1219,7 @@ msgstr "Dernière mise à jour le"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1185,6 +1235,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1198,6 +1249,7 @@ msgstr "Dernière mise à jour par"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1205,11 +1257,6 @@ msgstr "Dernière mise à jour par"
 msgid "Last Updated on"
 msgstr "Dernière mise à jour le"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1263,6 +1310,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1489,6 +1542,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1515,6 +1573,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1662,6 +1721,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/fr_CH.po b/contract/i18n/fr_CH.po
index 40bb3c5e6..c2499c578 100644
--- a/contract/i18n/fr_CH.po
+++ b/contract/i18n/fr_CH.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n > 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -736,6 +775,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -749,6 +789,7 @@ msgstr "Créé par"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -790,7 +831,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -872,9 +916,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -908,6 +955,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -974,6 +1022,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1169,6 +1218,7 @@ msgstr "Modifié le"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1184,6 +1234,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1197,6 +1248,7 @@ msgstr "Modifié par"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1204,11 +1256,6 @@ msgstr "Modifié par"
 msgid "Last Updated on"
 msgstr "Modifié le"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1262,6 +1309,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1488,6 +1541,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1514,6 +1572,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1661,6 +1720,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/gl.po b/contract/i18n/gl.po
index c4caf4738..822215c1d 100644
--- a/contract/i18n/gl.po
+++ b/contract/i18n/gl.po
@@ -19,6 +19,16 @@ msgstr ""
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
 "X-Generator: Weblate 3.4\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr "${object.company_id.name} Contrato (Ref ${object.name or 'n/a'})"
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -172,6 +189,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr "<strong>Descrición</strong>"
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 #, fuzzy
@@ -474,6 +496,7 @@ msgstr "Contacto"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -486,6 +509,11 @@ msgstr "Contrato"
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 #, fuzzy
@@ -522,17 +550,17 @@ msgstr ""
 msgid "Contract Manually Create Invoice Wizard"
 msgstr "Líneas de contrato"
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #, fuzzy
 msgid "Contract Name"
 msgstr "Tipos de contrato"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -702,6 +730,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 #, fuzzy
@@ -759,6 +798,7 @@ msgstr "Crear facturas"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -772,6 +812,7 @@ msgstr "Creado por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -815,7 +856,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -897,9 +941,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "Descrición"
 
@@ -935,6 +982,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -1003,6 +1051,7 @@ msgstr "Agrupar por..."
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1206,6 +1255,7 @@ msgstr "Próxima data de factura"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1221,6 +1271,7 @@ msgstr "Modificado por última vez o"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1234,6 +1285,7 @@ msgstr "ültima actualización por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1241,11 +1293,6 @@ msgstr "ültima actualización por"
 msgid "Last Updated on"
 msgstr "Última actualización en"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1301,6 +1348,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1532,6 +1585,11 @@ msgstr "Líneas de contrato"
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1558,6 +1616,7 @@ msgstr "Contratos de compras"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr "Cantidade"
 
@@ -1710,6 +1769,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr "Enviar por correo electrónico"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/gl_ES.po b/contract/i18n/gl_ES.po
index 46e451586..4f8b4053b 100644
--- a/contract/i18n/gl_ES.po
+++ b/contract/i18n/gl_ES.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1167,6 +1216,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1182,6 +1232,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1195,6 +1246,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1202,11 +1254,6 @@ msgstr ""
 msgid "Last Updated on"
 msgstr ""
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1260,6 +1307,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1486,6 +1539,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1512,6 +1570,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1659,6 +1718,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/he.po b/contract/i18n/he.po
index 3fd286221..ae6aedc04 100644
--- a/contract/i18n/he.po
+++ b/contract/i18n/he.po
@@ -18,6 +18,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -92,6 +102,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -169,6 +186,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -465,6 +487,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -477,6 +500,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -510,13 +538,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -680,6 +708,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr "נוצר על ידי"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1168,6 +1217,7 @@ msgstr "עודכן לאחרונה על"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1183,6 +1233,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1196,6 +1247,7 @@ msgstr "עודכן לאחרונה על ידי"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1203,11 +1255,6 @@ msgstr "עודכן לאחרונה על ידי"
 msgid "Last Updated on"
 msgstr "עודכן לאחרונה על"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1261,6 +1308,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1487,6 +1540,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1513,6 +1571,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1660,6 +1719,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/hi_IN.po b/contract/i18n/hi_IN.po
index 02165b842..da031f8e5 100644
--- a/contract/i18n/hi_IN.po
+++ b/contract/i18n/hi_IN.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -469,6 +491,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -481,6 +504,11 @@ msgstr "अनुबंध"
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 #, fuzzy
@@ -517,17 +545,17 @@ msgstr ""
 msgid "Contract Manually Create Invoice Wizard"
 msgstr "अनुबंध टेम्पलेट"
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #, fuzzy
 msgid "Contract Name"
 msgstr "अनुबंध टेम्पलेट"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -698,6 +726,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 #, fuzzy
@@ -755,6 +794,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -768,6 +808,7 @@ msgstr "द्वारा बनाया गया"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -810,7 +851,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -892,9 +936,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "विवरण"
 
@@ -928,6 +975,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -994,6 +1042,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1193,6 +1242,7 @@ msgstr "अंतिम बार अद्यतन किया गया"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1208,6 +1258,7 @@ msgstr "अंतिम बार संशोधित"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1221,6 +1272,7 @@ msgstr "द्वारा अंतिम अद्यतन"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1228,11 +1280,6 @@ msgstr "द्वारा अंतिम अद्यतन"
 msgid "Last Updated on"
 msgstr "अंतिम बार अद्यतन किया गया"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1288,6 +1335,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1517,6 +1570,11 @@ msgstr "अनुबंध"
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1544,6 +1602,7 @@ msgstr "अनुबंध"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr "संख्या"
 
@@ -1694,6 +1753,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/hr.po b/contract/i18n/hr.po
index cc091c17f..a5033434c 100644
--- a/contract/i18n/hr.po
+++ b/contract/i18n/hr.po
@@ -20,6 +20,16 @@ msgstr ""
 "%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2;\n"
 "X-Generator: Weblate 3.9.1\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -94,6 +104,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr "${object.company_id.name} Ugovor (Ref ${object.name or 'n/a'})"
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -172,6 +189,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr "<strong>Opis</strong>"
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 #, fuzzy
@@ -473,6 +495,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -485,6 +508,11 @@ msgstr "Ugovor"
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 #, fuzzy
@@ -521,17 +549,17 @@ msgstr ""
 msgid "Contract Manually Create Invoice Wizard"
 msgstr "Ugovor"
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #, fuzzy
 msgid "Contract Name"
 msgstr "Ugovor"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -702,6 +730,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 #, fuzzy
@@ -759,6 +798,7 @@ msgstr "Kreiraj račune"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -772,6 +812,7 @@ msgstr "Kreirao"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -814,7 +855,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -896,9 +940,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "Opis"
 
@@ -934,6 +981,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -1002,6 +1050,7 @@ msgstr "Grupiraj po..."
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1202,6 +1251,7 @@ msgstr "Datum sljedećeg računa"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1217,6 +1267,7 @@ msgstr "Zadnje modificirano"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1230,6 +1281,7 @@ msgstr "Zadnji ažurirao"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1237,11 +1289,6 @@ msgstr "Zadnji ažurirao"
 msgid "Last Updated on"
 msgstr "Zadnje ažuriranje"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1297,6 +1344,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1527,6 +1580,11 @@ msgstr "Ugovori"
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1554,6 +1612,7 @@ msgstr "Ugovori"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr "Količina"
 
@@ -1705,6 +1764,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/hr_HR.po b/contract/i18n/hr_HR.po
index e54b14ec8..308967a67 100644
--- a/contract/i18n/hr_HR.po
+++ b/contract/i18n/hr_HR.po
@@ -20,6 +20,16 @@ msgstr ""
 "Plural-Forms: nplurals=3; plural=n%10==1 && n%100!=11 ? 0 : n%10>=2 && n"
 "%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2;\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -94,6 +104,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -171,6 +188,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -470,6 +492,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -482,6 +505,11 @@ msgstr "Ugovor"
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 #, fuzzy
@@ -518,17 +546,17 @@ msgstr ""
 msgid "Contract Manually Create Invoice Wizard"
 msgstr "Predložak ugovora"
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #, fuzzy
 msgid "Contract Name"
 msgstr "Predložak ugovora"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -699,6 +727,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 #, fuzzy
@@ -756,6 +795,7 @@ msgstr "Kreiraj račune"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -769,6 +809,7 @@ msgstr "Kreirao"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -812,7 +853,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -894,9 +938,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "Opis"
 
@@ -932,6 +979,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -1000,6 +1048,7 @@ msgstr "Grupiraj po..."
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1201,6 +1250,7 @@ msgstr "Datum sljedećeg računa"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1216,6 +1266,7 @@ msgstr "Zadnje modificirano"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1229,6 +1280,7 @@ msgstr "Zadnji ažurirao"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1236,11 +1288,6 @@ msgstr "Zadnji ažurirao"
 msgid "Last Updated on"
 msgstr "Zadnje ažurirano"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1296,6 +1343,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1526,6 +1579,11 @@ msgstr "Ugovori"
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1553,6 +1611,7 @@ msgstr "Ugovori"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr "Količina"
 
@@ -1705,6 +1764,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/hu.po b/contract/i18n/hu.po
index 86f2c918f..f384880a1 100644
--- a/contract/i18n/hu.po
+++ b/contract/i18n/hu.po
@@ -18,6 +18,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -92,6 +102,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -169,6 +186,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -467,6 +489,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -479,6 +502,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -512,13 +540,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -683,6 +711,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -738,6 +777,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -751,6 +791,7 @@ msgstr "Készítette"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -792,7 +833,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -874,9 +918,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -910,6 +957,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -976,6 +1024,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1171,6 +1220,7 @@ msgstr "Utoljára frissítve ekkor"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1186,6 +1236,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1199,6 +1250,7 @@ msgstr "Utoljára frissítve, által"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1206,11 +1258,6 @@ msgstr "Utoljára frissítve, által"
 msgid "Last Updated on"
 msgstr "Utoljára frissítve ekkor"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1264,6 +1311,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1490,6 +1543,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1516,6 +1574,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1663,6 +1722,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/id.po b/contract/i18n/id.po
index 396ea4ccd..318e25212 100644
--- a/contract/i18n/id.po
+++ b/contract/i18n/id.po
@@ -18,6 +18,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=1; plural=0;\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -92,6 +102,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -169,6 +186,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -465,6 +487,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -477,6 +500,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -510,13 +538,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -680,6 +708,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr "Dibuat oleh"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1168,6 +1217,7 @@ msgstr "Diperbaharui pada"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1183,6 +1233,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1196,6 +1247,7 @@ msgstr "Diperbaharui oleh"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1203,11 +1255,6 @@ msgstr "Diperbaharui oleh"
 msgid "Last Updated on"
 msgstr "Diperbaharui pada"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1261,6 +1308,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1487,6 +1540,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1513,6 +1571,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1660,6 +1719,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/it.po b/contract/i18n/it.po
index 501c5d016..a447d0d35 100644
--- a/contract/i18n/it.po
+++ b/contract/i18n/it.po
@@ -19,6 +19,16 @@ msgstr ""
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
 "X-Generator: Weblate 3.10\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr "Contratto ${object.company_id.name} (Rif. ${object.name or 'n/d'})"
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -178,6 +195,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr "<strong>Descrizione</strong>"
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 #, fuzzy
@@ -482,6 +504,7 @@ msgstr "Contatto"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -494,6 +517,11 @@ msgstr "Contratto"
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 #, fuzzy
@@ -528,16 +556,16 @@ msgstr ""
 msgid "Contract Manually Create Invoice Wizard"
 msgstr "Procedura riga contratto"
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 msgid "Contract Name"
 msgstr "Nome contratto"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -726,6 +754,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -783,6 +822,7 @@ msgstr "Crea fatture"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -796,6 +836,7 @@ msgstr "Creato da"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -838,7 +879,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -920,9 +964,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "Descrizione"
 
@@ -957,6 +1004,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -1024,6 +1072,7 @@ msgstr "Raggruppa per..."
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1224,6 +1273,7 @@ msgstr "Ultima data fatturata"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1239,6 +1289,7 @@ msgstr "Ultima modifica il"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1252,6 +1303,7 @@ msgstr "Ultimo aggiornamento di"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1259,11 +1311,6 @@ msgstr "Ultimo aggiornamento di"
 msgid "Last Updated on"
 msgstr "Ultimo aggiornamento il"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1320,6 +1367,12 @@ msgstr "Errore consegna messaggio"
 msgid "Messages"
 msgstr "Messaggi"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1547,6 +1600,11 @@ msgstr "Riga contratto predecessore"
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1573,6 +1631,7 @@ msgstr "Contratti di acquisto"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr "Quantità"
 
@@ -1721,6 +1780,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr "Invia per email"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/ja.po b/contract/i18n/ja.po
index 5f195d0a2..f09d7182d 100644
--- a/contract/i18n/ja.po
+++ b/contract/i18n/ja.po
@@ -18,6 +18,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=1; plural=0;\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -92,6 +102,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -169,6 +186,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -465,6 +487,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -477,6 +500,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -510,13 +538,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -680,6 +708,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr "作成者"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1168,6 +1217,7 @@ msgstr "最終更新日"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1183,6 +1233,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1196,6 +1247,7 @@ msgstr "最終更新者"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1203,11 +1255,6 @@ msgstr "最終更新者"
 msgid "Last Updated on"
 msgstr "最終更新日"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1261,6 +1308,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1487,6 +1540,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1513,6 +1571,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1660,6 +1719,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/ko.po b/contract/i18n/ko.po
index a807e1cda..30ea5c06d 100644
--- a/contract/i18n/ko.po
+++ b/contract/i18n/ko.po
@@ -18,6 +18,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=1; plural=0;\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -92,6 +102,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -169,6 +186,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -465,6 +487,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -477,6 +500,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -510,13 +538,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -680,6 +708,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr "작성자"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1168,6 +1217,7 @@ msgstr "최근 갱신 날짜"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1183,6 +1233,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1196,6 +1247,7 @@ msgstr "최근 갱신한 사람"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1203,11 +1255,6 @@ msgstr "최근 갱신한 사람"
 msgid "Last Updated on"
 msgstr "최근 갱신 날짜"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1261,6 +1308,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1487,6 +1540,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1513,6 +1571,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1660,6 +1719,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/lt.po b/contract/i18n/lt.po
index 41d6bb05d..9d94dfacb 100644
--- a/contract/i18n/lt.po
+++ b/contract/i18n/lt.po
@@ -19,6 +19,16 @@ msgstr ""
 "Plural-Forms: nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && (n"
 "%100<10 || n%100>=20) ? 1 : 2);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -736,6 +775,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -749,6 +789,7 @@ msgstr "Sukūrė"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -790,7 +831,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -872,9 +916,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -908,6 +955,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -974,6 +1022,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1169,6 +1218,7 @@ msgstr "Paskutinį kartą atnaujinta"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1184,6 +1234,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1197,6 +1248,7 @@ msgstr "Paskutini kartą atnaujino"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1204,11 +1256,6 @@ msgstr "Paskutini kartą atnaujino"
 msgid "Last Updated on"
 msgstr "Paskutinį kartą atnaujinta"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1262,6 +1309,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1488,6 +1541,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1514,6 +1572,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1661,6 +1720,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/lt_LT.po b/contract/i18n/lt_LT.po
index cbd434a03..2f1e0e472 100644
--- a/contract/i18n/lt_LT.po
+++ b/contract/i18n/lt_LT.po
@@ -20,6 +20,16 @@ msgstr ""
 "Plural-Forms: nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && (n"
 "%100<10 || n%100>=20) ? 1 : 2);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -94,6 +104,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -171,6 +188,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -467,6 +489,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -479,6 +502,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -512,13 +540,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -682,6 +710,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -737,6 +776,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -750,6 +790,7 @@ msgstr "Sukūrė"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -791,7 +832,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -873,9 +917,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -909,6 +956,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -975,6 +1023,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1170,6 +1219,7 @@ msgstr "Paskutinį kartą atnaujinta"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1185,6 +1235,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1198,6 +1249,7 @@ msgstr "Paskutinį kartą atnaujino"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1205,11 +1257,6 @@ msgstr "Paskutinį kartą atnaujino"
 msgid "Last Updated on"
 msgstr "Paskutinį kartą atnaujinta"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1263,6 +1310,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1489,6 +1542,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1515,6 +1573,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1662,6 +1721,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/lv.po b/contract/i18n/lv.po
index 00d786e32..2c6f3be15 100644
--- a/contract/i18n/lv.po
+++ b/contract/i18n/lv.po
@@ -19,6 +19,16 @@ msgstr ""
 "Plural-Forms: nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n != 0 ? 1 : "
 "2);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -736,6 +775,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -749,6 +789,7 @@ msgstr "Izveidoja"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -790,7 +831,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -872,9 +916,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -908,6 +955,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -974,6 +1022,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1169,6 +1218,7 @@ msgstr "Pēdējās izmaiņas"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1184,6 +1234,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1197,6 +1248,7 @@ msgstr "Pēdējo reizi atjaunoja"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1204,11 +1256,6 @@ msgstr "Pēdējo reizi atjaunoja"
 msgid "Last Updated on"
 msgstr "Pēdējās izmaiņas"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1262,6 +1309,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1488,6 +1541,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1514,6 +1572,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1661,6 +1720,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/mk.po b/contract/i18n/mk.po
index 9d631d18d..5580b7c71 100644
--- a/contract/i18n/mk.po
+++ b/contract/i18n/mk.po
@@ -18,6 +18,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n % 10 == 1 && n % 100 != 11) ? 0 : 1;\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -92,6 +102,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -169,6 +186,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -465,6 +487,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -477,6 +500,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -510,13 +538,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -680,6 +708,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr "Креирано од"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1168,6 +1217,7 @@ msgstr "Последно ажурирање на"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1183,6 +1233,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1196,6 +1247,7 @@ msgstr "Последно ажурирање од"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1203,11 +1255,6 @@ msgstr "Последно ажурирање од"
 msgid "Last Updated on"
 msgstr "Последно ажурирање на"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1261,6 +1308,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1487,6 +1540,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1513,6 +1571,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1660,6 +1719,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/mn.po b/contract/i18n/mn.po
index 258d58a79..0dd9d0264 100644
--- a/contract/i18n/mn.po
+++ b/contract/i18n/mn.po
@@ -18,6 +18,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -92,6 +102,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -169,6 +186,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -465,6 +487,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -477,6 +500,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -510,13 +538,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -680,6 +708,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr "Үүсгэгч"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1168,6 +1217,7 @@ msgstr "Сүүлийн засвар хийсэн огноо"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1183,6 +1233,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1196,6 +1247,7 @@ msgstr "Сүүлийн засвар хийсэн"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1203,11 +1255,6 @@ msgstr "Сүүлийн засвар хийсэн"
 msgid "Last Updated on"
 msgstr "Сүүлийн засвар хийсэн огноо"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1261,6 +1308,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1487,6 +1540,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1513,6 +1571,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1660,6 +1719,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/nb.po b/contract/i18n/nb.po
index 8c55cd8fb..8ce24bec7 100644
--- a/contract/i18n/nb.po
+++ b/contract/i18n/nb.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -736,6 +775,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -749,6 +789,7 @@ msgstr "Opprettet av"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -790,7 +831,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -872,9 +916,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -908,6 +955,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -974,6 +1022,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1169,6 +1218,7 @@ msgstr "Sist oppdatert"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1184,6 +1234,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1197,6 +1248,7 @@ msgstr "Sist oppdatert av"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1204,11 +1256,6 @@ msgstr "Sist oppdatert av"
 msgid "Last Updated on"
 msgstr "Sist oppdatert"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1262,6 +1309,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1488,6 +1541,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1514,6 +1572,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1661,6 +1720,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/nb_NO.po b/contract/i18n/nb_NO.po
index 839ecccc5..ba3c43d2d 100644
--- a/contract/i18n/nb_NO.po
+++ b/contract/i18n/nb_NO.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -736,6 +775,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -749,6 +789,7 @@ msgstr "Laget av"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -790,7 +831,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -872,9 +916,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -908,6 +955,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -975,6 +1023,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1170,6 +1219,7 @@ msgstr "Sist oppdatert den"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1185,6 +1235,7 @@ msgstr "Sist endret den"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1198,6 +1249,7 @@ msgstr "Sist oppdatert av"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1205,11 +1257,6 @@ msgstr "Sist oppdatert av"
 msgid "Last Updated on"
 msgstr "Sist oppdatert den"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1263,6 +1310,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1489,6 +1542,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1515,6 +1573,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1662,6 +1721,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/nl.po b/contract/i18n/nl.po
index 4b55b4793..195b6fe5b 100644
--- a/contract/i18n/nl.po
+++ b/contract/i18n/nl.po
@@ -19,6 +19,16 @@ msgstr ""
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
 "X-Generator: Weblate 4.3.2\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr "${object.company_id.name} Contract (Ref ${object.name or 'n/b'})"
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -180,6 +197,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr "<strong>Omschrijving</strong>"
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 #, fuzzy
@@ -487,6 +509,7 @@ msgstr "Contactpersoon"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -499,6 +522,11 @@ msgstr "Contract"
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 #, fuzzy
@@ -533,16 +561,16 @@ msgstr ""
 msgid "Contract Manually Create Invoice Wizard"
 msgstr "Contractregels wizard"
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 msgid "Contract Name"
 msgstr "Contractnaam"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -732,6 +760,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -789,6 +828,7 @@ msgstr "Facturen aanmaken"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -802,6 +842,7 @@ msgstr "Aangemaakt door"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -844,7 +885,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -926,9 +970,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "Omschrijving"
 
@@ -964,6 +1011,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -1032,6 +1080,7 @@ msgstr "Groepeer op..."
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1233,6 +1282,7 @@ msgstr "Datum laatste factuur"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1248,6 +1298,7 @@ msgstr "Laatst bijgewerkt op"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1261,6 +1312,7 @@ msgstr "Laatste bijgewerkt door"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1268,11 +1320,6 @@ msgstr "Laatste bijgewerkt door"
 msgid "Last Updated on"
 msgstr "Laatst bijgewerkt op"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1328,6 +1375,12 @@ msgstr "Bericht bezorgfout"
 msgid "Messages"
 msgstr "Berichten"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1555,6 +1608,11 @@ msgstr "Voorganger Contractregels"
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1581,6 +1639,7 @@ msgstr "Inkoop Contracten"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr "Hoeveelheid"
 
@@ -1729,6 +1788,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr "Verzenden via e-mail"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/nl_BE.po b/contract/i18n/nl_BE.po
index 6de1529d4..3416cd9a6 100644
--- a/contract/i18n/nl_BE.po
+++ b/contract/i18n/nl_BE.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -736,6 +775,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -749,6 +789,7 @@ msgstr "Gemaakt door"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -790,7 +831,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -872,9 +916,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -908,6 +955,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -974,6 +1022,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1169,6 +1218,7 @@ msgstr "Laatst bijgewerkt op"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1184,6 +1234,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1197,6 +1248,7 @@ msgstr "Laatst bijgewerkt door"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1204,11 +1256,6 @@ msgstr "Laatst bijgewerkt door"
 msgid "Last Updated on"
 msgstr "Laatst bijgewerkt op"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1262,6 +1309,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1488,6 +1541,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1514,6 +1572,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1661,6 +1720,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/nl_NL.po b/contract/i18n/nl_NL.po
index dc686352f..c86eca414 100644
--- a/contract/i18n/nl_NL.po
+++ b/contract/i18n/nl_NL.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -467,6 +489,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -479,6 +502,11 @@ msgstr "Contract"
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 #, fuzzy
@@ -515,17 +543,17 @@ msgstr ""
 msgid "Contract Manually Create Invoice Wizard"
 msgstr "Contractsjabloon"
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #, fuzzy
 msgid "Contract Name"
 msgstr "Contractsjabloon"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -696,6 +724,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 #, fuzzy
@@ -753,6 +792,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -766,6 +806,7 @@ msgstr "Aangemaakt door"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -808,7 +849,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -890,9 +934,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -926,6 +973,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -992,6 +1040,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1191,6 +1240,7 @@ msgstr "Laatst bijgewerkt op"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1206,6 +1256,7 @@ msgstr "Laatst aangepast op"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1219,6 +1270,7 @@ msgstr "Laatst bijgewerkt door"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1226,11 +1278,6 @@ msgstr "Laatst bijgewerkt door"
 msgid "Last Updated on"
 msgstr "Laatst bijgewerkt op"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1286,6 +1333,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1515,6 +1568,11 @@ msgstr "Contracten"
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1542,6 +1600,7 @@ msgstr "Contracten"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1691,6 +1750,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/pl.po b/contract/i18n/pl.po
index 54edb7f49..c3e9f3157 100644
--- a/contract/i18n/pl.po
+++ b/contract/i18n/pl.po
@@ -20,6 +20,16 @@ msgstr ""
 "%100<12 || n%100>14) ? 1 : n!=1 && (n%10>=0 && n%10<=1) || (n%10>=5 && n"
 "%10<=9) || (n%100>=12 && n%100<=14) ? 2 : 3);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -94,6 +104,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -171,6 +188,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -467,6 +489,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -479,6 +502,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -512,13 +540,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -682,6 +710,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -737,6 +776,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -750,6 +790,7 @@ msgstr "Utworzone przez"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -791,7 +832,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -873,9 +917,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -909,6 +956,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -975,6 +1023,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1170,6 +1219,7 @@ msgstr "Data ostatniej modyfikacji"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1185,6 +1235,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1198,6 +1249,7 @@ msgstr "Ostatnio modyfikowane przez"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1205,11 +1257,6 @@ msgstr "Ostatnio modyfikowane przez"
 msgid "Last Updated on"
 msgstr "Data ostatniej modyfikacji"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1263,6 +1310,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1489,6 +1542,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1515,6 +1573,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1662,6 +1721,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/pt.po b/contract/i18n/pt.po
index 66927ce5d..99294473c 100644
--- a/contract/i18n/pt.po
+++ b/contract/i18n/pt.po
@@ -20,6 +20,16 @@ msgstr ""
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 "X-Generator: Weblate 3.10\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -94,6 +104,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr "${object.company_id.name} Contrato (Refª ${object.name or 'n/a'})"
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -179,6 +196,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr "<strong>Descrição</strong>"
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 #, fuzzy
@@ -483,6 +505,7 @@ msgstr "Contacto"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -495,6 +518,11 @@ msgstr "Contrato"
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 #, fuzzy
@@ -528,16 +556,16 @@ msgstr "O Contrato Cria Manualmente a Fatura"
 msgid "Contract Manually Create Invoice Wizard"
 msgstr "O Contrato Cria Manualmente o Assistente da Fatura"
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 msgid "Contract Name"
 msgstr "Nome de Contrato"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -725,6 +753,17 @@ msgstr ""
 "Contrato faturado manualmente: <a href=\"#\" data-oe-model=\"%s\" data-oe-id="
 "\"%s\">Fatura</a>"
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -780,6 +819,7 @@ msgstr "Criar faturas"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -793,6 +833,7 @@ msgstr "Criado por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -835,7 +876,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -917,9 +961,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "Descrição"
 
@@ -954,6 +1001,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -1021,6 +1069,7 @@ msgstr "Agrupar Por..."
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1223,6 +1272,7 @@ msgstr "Data da Última Fatura"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1238,6 +1288,7 @@ msgstr "Última Modificação Em"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1251,6 +1302,7 @@ msgstr "Atualizado pela última vez por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1258,11 +1310,6 @@ msgstr "Atualizado pela última vez por"
 msgid "Last Updated on"
 msgstr "Atualizado pela última vez em"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1316,6 +1363,12 @@ msgstr "Erro de envio de mensagem"
 msgid "Messages"
 msgstr "Mensagens"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1545,6 +1598,11 @@ msgstr "Linha de Contrato Precedente"
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1571,6 +1629,7 @@ msgstr "Contratos de Compras"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr "Quantidade"
 
@@ -1719,6 +1778,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr "Enviar por Email"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/pt_BR.po b/contract/i18n/pt_BR.po
index 965a23d11..08d95f60b 100644
--- a/contract/i18n/pt_BR.po
+++ b/contract/i18n/pt_BR.po
@@ -20,6 +20,16 @@ msgstr ""
 "Plural-Forms: nplurals=2; plural=n > 1;\n"
 "X-Generator: Weblate 3.10\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -94,6 +104,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr "${object.company_id.name} Contrato (Ref ${object.name or 'n/a'})"
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -178,6 +195,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr "<strong>Descrição</strong>"
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -478,6 +500,7 @@ msgstr "Contato"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -490,6 +513,11 @@ msgstr "Contrato"
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -522,16 +550,16 @@ msgstr "Contrato criar fatura manualmente"
 msgid "Contract Manually Create Invoice Wizard"
 msgstr "Assistente para criar manualmente fatura de contrato"
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 msgid "Contract Name"
 msgstr "Nome do Contrato"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -718,6 +746,17 @@ msgstr ""
 "Contrato faturado manualmente: <a href=\"#\" data-oe-model=\"%s\" data-oe-id="
 "\"%s\">Fatura</a>"
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -772,6 +811,7 @@ msgstr "Criar faturas"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -785,6 +825,7 @@ msgstr "Criado por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -826,7 +867,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -912,9 +956,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "Descrição"
 
@@ -948,6 +995,7 @@ msgstr "Desconto aplicado em faturas geradas. Deve ser menor ou igual a 100"
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -1014,6 +1062,7 @@ msgstr "Agrupar por..."
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1216,6 +1265,7 @@ msgstr "Última Data Faturada"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1231,6 +1281,7 @@ msgstr "Última Modificação Feita em"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1244,6 +1295,7 @@ msgstr "Última Atualização Feita por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1251,11 +1303,6 @@ msgstr "Última Atualização Feita por"
 msgid "Last Updated on"
 msgstr "Última Atualização Feita em"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1309,6 +1356,12 @@ msgstr "Erro na Entrega da Mensagem"
 msgid "Messages"
 msgstr "Mensagens"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1537,6 +1590,11 @@ msgstr "Linha de Contrato Antecessor"
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1563,6 +1621,7 @@ msgstr "Contratos de Compra"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr "Quantidade"
 
@@ -1710,6 +1769,11 @@ msgstr "Semestre(s)"
 msgid "Send by Email"
 msgstr "Enviar por E-mail"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/pt_PT.po b/contract/i18n/pt_PT.po
index aec5dc048..32bb30dbd 100644
--- a/contract/i18n/pt_PT.po
+++ b/contract/i18n/pt_PT.po
@@ -20,6 +20,16 @@ msgstr ""
 "Plural-Forms: nplurals=2; plural=n > 1;\n"
 "X-Generator: Weblate 3.1.1\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -94,6 +104,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr "${object.company_id.name} Contrato (Ref ${object.name or 'n/a'})"
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -171,6 +188,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -469,6 +491,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -481,6 +504,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -514,13 +542,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -685,6 +713,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -740,6 +779,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -753,6 +793,7 @@ msgstr "Criado por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -794,7 +835,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -876,9 +920,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -912,6 +959,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -979,6 +1027,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1174,6 +1223,7 @@ msgstr "Atualizado pela última vez em"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1189,6 +1239,7 @@ msgstr "Última Modificação em"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1202,6 +1253,7 @@ msgstr "Atualizado pela última vez por"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1209,11 +1261,6 @@ msgstr "Atualizado pela última vez por"
 msgid "Last Updated on"
 msgstr "Atualizado pela última vez em"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1267,6 +1314,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1493,6 +1546,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1519,6 +1577,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1666,6 +1725,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/ro.po b/contract/i18n/ro.po
index 3304a49f0..412c66456 100644
--- a/contract/i18n/ro.po
+++ b/contract/i18n/ro.po
@@ -19,6 +19,16 @@ msgstr ""
 "Plural-Forms: nplurals=3; plural=(n==1?0:(((n%100>19)||((n%100==0)&&(n!=0)))?"
 "2:1));\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -468,6 +490,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -480,6 +503,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -513,13 +541,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -684,6 +712,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -739,6 +778,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -752,6 +792,7 @@ msgstr "Creat de"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -793,7 +834,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -875,9 +919,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -911,6 +958,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -978,6 +1026,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1173,6 +1222,7 @@ msgstr "Ultima actualizare la"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1188,6 +1238,7 @@ msgstr "Ultima actualizare în"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1201,6 +1252,7 @@ msgstr "Ultima actualizare făcută de"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1208,11 +1260,6 @@ msgstr "Ultima actualizare făcută de"
 msgid "Last Updated on"
 msgstr "Ultima actualizare la"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1266,6 +1313,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1492,6 +1545,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1518,6 +1576,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1665,6 +1724,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/ru.po b/contract/i18n/ru.po
index 1dcacbd70..3f07b4cd1 100644
--- a/contract/i18n/ru.po
+++ b/contract/i18n/ru.po
@@ -20,6 +20,16 @@ msgstr ""
 "%10<=4 && (n%100<12 || n%100>14) ? 1 : n%10==0 || (n%10>=5 && n%10<=9) || (n"
 "%100>=11 && n%100<=14)? 2 : 3);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -94,6 +104,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -171,6 +188,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -468,6 +490,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -480,6 +503,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 #, fuzzy
@@ -516,17 +544,17 @@ msgstr ""
 msgid "Contract Manually Create Invoice Wizard"
 msgstr "Договоры"
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #, fuzzy
 msgid "Contract Name"
 msgstr "Договоры"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -697,6 +725,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 #, fuzzy
@@ -754,6 +793,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -767,6 +807,7 @@ msgstr "Создано"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -809,7 +850,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -891,9 +935,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "Описание"
 
@@ -927,6 +974,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -993,6 +1041,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1192,6 +1241,7 @@ msgstr "Последний раз обновлено"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1207,6 +1257,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1220,6 +1271,7 @@ msgstr "Последний раз обновлено"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1227,11 +1279,6 @@ msgstr "Последний раз обновлено"
 msgid "Last Updated on"
 msgstr "Последний раз обновлено"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1287,6 +1334,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1516,6 +1569,11 @@ msgstr "Договоры"
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1543,6 +1601,7 @@ msgstr "Договоры"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1693,6 +1752,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/sk.po b/contract/i18n/sk.po
index e208b9af0..88807a5ec 100644
--- a/contract/i18n/sk.po
+++ b/contract/i18n/sk.po
@@ -18,6 +18,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=3; plural=(n==1) ? 0 : (n>=2 && n<=4) ? 1 : 2;\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -92,6 +102,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -169,6 +186,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -465,6 +487,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -477,6 +500,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -510,13 +538,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -680,6 +708,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr "Vytvoril"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1168,6 +1217,7 @@ msgstr "Naposledy upravené"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1183,6 +1233,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1196,6 +1247,7 @@ msgstr "Naposledy upravil"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1203,11 +1255,6 @@ msgstr "Naposledy upravil"
 msgid "Last Updated on"
 msgstr "Naposledy upravené"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1261,6 +1308,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1487,6 +1540,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1513,6 +1571,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1660,6 +1719,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/sk_SK.po b/contract/i18n/sk_SK.po
index 4e9246d2c..e8dafd479 100644
--- a/contract/i18n/sk_SK.po
+++ b/contract/i18n/sk_SK.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=3; plural=(n==1) ? 0 : (n>=2 && n<=4) ? 1 : 2;\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -468,6 +490,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -480,6 +503,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -513,13 +541,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -684,6 +712,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -738,6 +777,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -751,6 +791,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -792,7 +833,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -874,9 +918,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -910,6 +957,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -976,6 +1024,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1170,6 +1219,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1185,6 +1235,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1198,6 +1249,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1205,11 +1257,6 @@ msgstr ""
 msgid "Last Updated on"
 msgstr ""
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1263,6 +1310,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1489,6 +1542,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1515,6 +1573,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1662,6 +1721,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/sl.po b/contract/i18n/sl.po
index d8d176e9b..a1c9ad3b4 100644
--- a/contract/i18n/sl.po
+++ b/contract/i18n/sl.po
@@ -20,6 +20,16 @@ msgstr ""
 "%100==4 ? 2 : 3;\n"
 "X-Generator: Weblate 3.10\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -94,6 +104,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -171,6 +188,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -467,6 +489,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -479,6 +502,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -512,13 +540,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -682,6 +710,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -736,6 +775,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -749,6 +789,7 @@ msgstr "Ustvaril"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -790,7 +831,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -872,9 +916,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "Opis"
 
@@ -908,6 +955,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -974,6 +1022,7 @@ msgstr "Združi po..."
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1168,6 +1217,7 @@ msgstr "Zadnjič zaračunano"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1183,6 +1233,7 @@ msgstr "Zadnjič spremenjeno"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1196,6 +1247,7 @@ msgstr "Zadnjič posodobil"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1203,11 +1255,6 @@ msgstr "Zadnjič posodobil"
 msgid "Last Updated on"
 msgstr "Zadnjič posodobljeno"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1261,6 +1308,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1487,6 +1540,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1513,6 +1571,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1660,6 +1719,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/sr.po b/contract/i18n/sr.po
index 00154cb5a..3095faefe 100644
--- a/contract/i18n/sr.po
+++ b/contract/i18n/sr.po
@@ -19,6 +19,16 @@ msgstr ""
 "Plural-Forms: nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n"
 "%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -736,6 +775,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -749,6 +789,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -790,7 +831,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -872,9 +916,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -908,6 +955,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -974,6 +1022,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1168,6 +1217,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1183,6 +1233,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1196,6 +1247,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1203,11 +1255,6 @@ msgstr ""
 msgid "Last Updated on"
 msgstr ""
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1261,6 +1308,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1487,6 +1540,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1513,6 +1571,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1660,6 +1719,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/sr@latin.po b/contract/i18n/sr@latin.po
index 5c8261774..ae89e18b9 100644
--- a/contract/i18n/sr@latin.po
+++ b/contract/i18n/sr@latin.po
@@ -20,6 +20,16 @@ msgstr ""
 "Plural-Forms: nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n"
 "%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -94,6 +104,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -171,6 +188,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -467,6 +489,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -479,6 +502,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -512,13 +540,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -682,6 +710,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -737,6 +776,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -750,6 +790,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -791,7 +832,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -873,9 +917,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -909,6 +956,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -975,6 +1023,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1169,6 +1218,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1184,6 +1234,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1197,6 +1248,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1204,11 +1256,6 @@ msgstr ""
 msgid "Last Updated on"
 msgstr ""
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1262,6 +1309,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1488,6 +1541,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1514,6 +1572,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1661,6 +1720,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/sv.po b/contract/i18n/sv.po
index 52ce66d4c..f9b03c178 100644
--- a/contract/i18n/sv.po
+++ b/contract/i18n/sv.po
@@ -18,6 +18,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -92,6 +102,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -169,6 +186,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -465,6 +487,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -477,6 +500,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -510,13 +538,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -680,6 +708,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr "Skapad av"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1168,6 +1217,7 @@ msgstr "Senast uppdaterad"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1183,6 +1233,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1196,6 +1247,7 @@ msgstr "Senast uppdaterad av"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1203,11 +1255,6 @@ msgstr "Senast uppdaterad av"
 msgid "Last Updated on"
 msgstr "Senast uppdaterad"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1261,6 +1308,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1487,6 +1540,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1513,6 +1571,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1660,6 +1719,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/th.po b/contract/i18n/th.po
index d8550d54a..2a16562d7 100644
--- a/contract/i18n/th.po
+++ b/contract/i18n/th.po
@@ -18,6 +18,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=1; plural=0;\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -92,6 +102,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -169,6 +186,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -465,6 +487,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -477,6 +500,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -510,13 +538,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -680,6 +708,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr "สร้างโดย"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1168,6 +1217,7 @@ msgstr "อัพเดทครั้งสุดท้ายเมื่อ"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1183,6 +1233,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1196,6 +1247,7 @@ msgstr "อัพเดทครั้งสุดท้ายโดย"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1203,11 +1255,6 @@ msgstr "อัพเดทครั้งสุดท้ายโดย"
 msgid "Last Updated on"
 msgstr "อัพเดทครั้งสุดท้ายเมื่อ"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1261,6 +1308,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1487,6 +1540,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1513,6 +1571,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1660,6 +1719,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/tr.po b/contract/i18n/tr.po
index b7173df07..b8d242a95 100644
--- a/contract/i18n/tr.po
+++ b/contract/i18n/tr.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n > 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr "${object.company_id.name} Sözleşme (Ref ${object.name or 'n/a'})"
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -172,6 +189,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr "<strong>Açıklama</strong>"
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 #, fuzzy
@@ -474,6 +496,7 @@ msgstr "Kontak"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -486,6 +509,11 @@ msgstr "Sözleşme"
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 #, fuzzy
@@ -522,17 +550,17 @@ msgstr ""
 msgid "Contract Manually Create Invoice Wizard"
 msgstr "Sözleşme Satırları"
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #, fuzzy
 msgid "Contract Name"
 msgstr "Sözleşme Şablonu"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -703,6 +731,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 #, fuzzy
@@ -760,6 +799,7 @@ msgstr "Faturalar oluştur"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -773,6 +813,7 @@ msgstr "Oluşturan"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -816,7 +857,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -898,9 +942,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "Açıklama"
 
@@ -935,6 +982,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -1003,6 +1051,7 @@ msgstr "Grupla ..."
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1206,6 +1255,7 @@ msgstr "Sonraki Fatura Tarihi"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1221,6 +1271,7 @@ msgstr "Son Değiştirilme"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1234,6 +1285,7 @@ msgstr "Son Güncelleyen"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1241,11 +1293,6 @@ msgstr "Son Güncelleyen"
 msgid "Last Updated on"
 msgstr "Son Güncelleme"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1301,6 +1348,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1532,6 +1585,11 @@ msgstr "Sözleşme Satırları"
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1559,6 +1617,7 @@ msgstr "Sözleşmeler"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr "Miktar"
 
@@ -1712,6 +1771,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr "E-posta ile Gönderme"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/tr_TR.po b/contract/i18n/tr_TR.po
index a697ddecb..e524ca172 100644
--- a/contract/i18n/tr_TR.po
+++ b/contract/i18n/tr_TR.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=2; plural=(n > 1);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -171,6 +188,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -470,6 +492,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -482,6 +505,11 @@ msgstr "Sözleşme"
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 #, fuzzy
@@ -518,17 +546,17 @@ msgstr ""
 msgid "Contract Manually Create Invoice Wizard"
 msgstr "Sözleşme"
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #, fuzzy
 msgid "Contract Name"
 msgstr "Sözleşme"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -699,6 +727,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 #, fuzzy
@@ -756,6 +795,7 @@ msgstr "Faturalar Oluştur"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -769,6 +809,7 @@ msgstr "Oluşturan"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -811,7 +852,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -893,9 +937,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "Açıklama"
 
@@ -930,6 +977,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -998,6 +1046,7 @@ msgstr "Grupla ..."
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1199,6 +1248,7 @@ msgstr "Sonraki Fatura Tarihi"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1214,6 +1264,7 @@ msgstr "Son Güncelleme"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1227,6 +1278,7 @@ msgstr "Son Güncelleyen"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1234,11 +1286,6 @@ msgstr "Son Güncelleyen"
 msgid "Last Updated on"
 msgstr "Son Güncelleme"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1294,6 +1341,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1524,6 +1577,11 @@ msgstr "Sözleşmeler"
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1551,6 +1609,7 @@ msgstr "Sözleşmeler"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr "Miktar"
 
@@ -1703,6 +1762,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/uk.po b/contract/i18n/uk.po
index 1faae311a..7545c69b7 100644
--- a/contract/i18n/uk.po
+++ b/contract/i18n/uk.po
@@ -19,6 +19,16 @@ msgstr ""
 "Plural-Forms: nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n"
 "%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -736,6 +775,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -749,6 +789,7 @@ msgstr "Створив"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -790,7 +831,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -872,9 +916,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -908,6 +955,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -974,6 +1022,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1169,6 +1218,7 @@ msgstr "Дата останньої зміни"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1184,6 +1234,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1197,6 +1248,7 @@ msgstr "Востаннє відредаговано"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1204,11 +1256,6 @@ msgstr "Востаннє відредаговано"
 msgid "Last Updated on"
 msgstr "Дата останньої зміни"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1262,6 +1309,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1488,6 +1541,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1514,6 +1572,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1661,6 +1720,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/vi.po b/contract/i18n/vi.po
index 402ca218d..dd03d4d40 100644
--- a/contract/i18n/vi.po
+++ b/contract/i18n/vi.po
@@ -18,6 +18,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=1; plural=0;\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -92,6 +102,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -169,6 +186,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -465,6 +487,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -477,6 +500,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -510,13 +538,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -680,6 +708,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -735,6 +774,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -748,6 +788,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -789,7 +830,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -871,9 +915,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -907,6 +954,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -973,6 +1021,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1167,6 +1216,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1182,6 +1232,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1195,6 +1246,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1202,11 +1254,6 @@ msgstr ""
 msgid "Last Updated on"
 msgstr ""
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1260,6 +1307,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1486,6 +1539,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1512,6 +1570,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1659,6 +1718,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/vi_VN.po b/contract/i18n/vi_VN.po
index f9a0981fd..9801c580e 100644
--- a/contract/i18n/vi_VN.po
+++ b/contract/i18n/vi_VN.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=1; plural=0;\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -736,6 +775,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -749,6 +789,7 @@ msgstr "Tạo bởi"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -790,7 +831,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -872,9 +916,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -908,6 +955,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -974,6 +1022,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1169,6 +1218,7 @@ msgstr "Cập nhật lần cuối vào"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1184,6 +1234,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1197,6 +1248,7 @@ msgstr "Cập nhật lần cuối bởi"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1204,11 +1256,6 @@ msgstr "Cập nhật lần cuối bởi"
 msgid "Last Updated on"
 msgstr "Cập nhật lần cuối vào"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1262,6 +1309,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1488,6 +1541,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1514,6 +1572,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1661,6 +1720,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/zh_CN.po b/contract/i18n/zh_CN.po
index cded8c192..63569c299 100644
--- a/contract/i18n/zh_CN.po
+++ b/contract/i18n/zh_CN.po
@@ -20,6 +20,16 @@ msgstr ""
 "Plural-Forms: nplurals=1; plural=0;\n"
 "X-Generator: Weblate 3.8\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -94,6 +104,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr "${object.company_id.name} 合同(参考 ${object.name or 'n/a'})"
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -172,6 +189,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr "<strong>说明</strong>"
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 #, fuzzy
@@ -474,6 +496,7 @@ msgstr "联系人"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -486,6 +509,11 @@ msgstr "合同"
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 #, fuzzy
@@ -520,16 +548,16 @@ msgstr ""
 msgid "Contract Manually Create Invoice Wizard"
 msgstr "合同行向导"
 
+#. module: contract
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 msgid "Contract Name"
 msgstr "合同名称"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
-msgstr ""
-
 #. module: contract
 #: model:ir.model,name:contract.model_contract_tag
 #: model:ir.ui.menu,name:contract.contract_tag_menu
@@ -718,6 +746,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -775,6 +814,7 @@ msgstr "创建发票"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -788,6 +828,7 @@ msgstr "创建者"
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -830,7 +871,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -912,9 +956,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr "说明"
 
@@ -948,6 +995,7 @@ msgstr "在生成的发票中应用的折扣。它应该小于或等于100"
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -1015,6 +1063,7 @@ msgstr "分组..."
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1211,6 +1260,7 @@ msgstr "已开票的最后日期"
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1226,6 +1276,7 @@ msgstr "最后修改时间"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1239,6 +1290,7 @@ msgstr "最后更新者"
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1246,11 +1298,6 @@ msgstr "最后更新者"
 msgid "Last Updated on"
 msgstr "最后更新时间"
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1306,6 +1353,12 @@ msgstr "消息传递错误"
 msgid "Messages"
 msgstr "消息"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1533,6 +1586,11 @@ msgstr "原先合同行"
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1559,6 +1617,7 @@ msgstr "采购合同"
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr "数量"
 
@@ -1707,6 +1766,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr "通过Email发送"
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/i18n/zh_TW.po b/contract/i18n/zh_TW.po
index d5479bcb1..f78107f26 100644
--- a/contract/i18n/zh_TW.po
+++ b/contract/i18n/zh_TW.po
@@ -19,6 +19,16 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: nplurals=1; plural=0;\n"
 
+#. module: contract
+#: model:mail.template,body_html:contract.mail_template_contract_modification
+msgid ""
+"\n"
+"            <p>Hello</p>\n"
+"            <p>We have modifications on the contract that we want to notify "
+"you.</p>\n"
+"        "
+msgstr ""
+
 #. module: contract
 #: model:mail.template,body_html:contract.email_contract_template
 msgid ""
@@ -93,6 +103,13 @@ msgstr ""
 msgid "${object.company_id.name} Contract (Ref ${object.name or 'n/a'})"
 msgstr ""
 
+#. module: contract
+#: model:mail.template,subject:contract.mail_template_contract_modification
+msgid ""
+"${object.company_id.name} Contract (Ref ${object.name or 'n/a'}) - "
+"Modifications"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_manually_create_invoice_form_view
 msgid ""
@@ -170,6 +187,11 @@ msgstr ""
 msgid "<strong>Description</strong>"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+msgid "<strong>Modifications</strong>"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.report_contract_document
 msgid "<strong>Notes: </strong>"
@@ -466,6 +488,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract_terminate__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_line__contract_id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__contract_id
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__contract_id
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.res_config_settings_form_view
@@ -478,6 +501,11 @@ msgstr ""
 msgid "Contract #"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Contract -"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_terminate_form_view
 msgid "Contract Contract Terminate"
@@ -511,13 +539,13 @@ msgid "Contract Manually Create Invoice Wizard"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
-msgid "Contract Name"
+#: model:ir.model,name:contract.model_contract_modification
+msgid "Contract Modification"
 msgstr ""
 
 #. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Contract Order -"
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Contract Name"
 msgstr ""
 
 #. module: contract
@@ -681,6 +709,17 @@ msgid ""
 "\"%s\">Invoice</a>"
 msgstr ""
 
+#. module: contract
+#: model:mail.message.subtype,name:contract.mail_message_subtype_contract_modification
+msgid "Contract modifications"
+msgstr ""
+
+#. module: contract
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "Contract start"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_template__contract_line_ids
 msgid "Contract template lines"
@@ -736,6 +775,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_uid
@@ -749,6 +789,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__create_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__create_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__create_date
@@ -790,7 +831,10 @@ msgstr ""
 
 #. module: contract
 #: code:addons/contract/controllers/main.py:0
+#: model:ir.model.fields,field_description:contract.field_contract_modification__date
 #: model_terms:ir.ui.view,arch_db:contract.portal_my_contracts
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 #, python-format
 msgid "Date"
 msgstr ""
@@ -872,9 +916,12 @@ msgstr ""
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__name
 #: model:ir.model.fields,field_description:contract.field_contract_line__name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__description
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__name
 #: model_terms:ir.ui.view,arch_db:contract.contract_abstract_contract_line_form_view
 #: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+#: model_terms:ir.ui.view,arch_db:contract.report_contract_document
+#: model_terms:ir.ui.view,arch_db:contract.template_contract_modification
 msgid "Description"
 msgstr ""
 
@@ -908,6 +955,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__display_name
+#: model:ir.model.fields,field_description:contract.field_contract_modification__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__display_name
 #: model:ir.model.fields,field_description:contract.field_contract_tag__display_name
@@ -974,6 +1022,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__id
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__id
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__id
+#: model:ir.model.fields,field_description:contract.field_contract_modification__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin__id
 #: model:ir.model.fields,field_description:contract.field_contract_tag__id
@@ -1168,6 +1217,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice____last_update
+#: model:ir.model.fields,field_description:contract.field_contract_modification____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_basic_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_recurrency_mixin____last_update
 #: model:ir.model.fields,field_description:contract.field_contract_tag____last_update
@@ -1183,6 +1233,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_uid
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_uid
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_uid
@@ -1196,6 +1247,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_line__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_line_wizard__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_manually_create_invoice__write_date
+#: model:ir.model.fields,field_description:contract.field_contract_modification__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_tag__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template__write_date
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__write_date
@@ -1203,11 +1255,6 @@ msgstr ""
 msgid "Last Updated on"
 msgstr ""
 
-#. module: contract
-#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
-msgid "Last date invoice"
-msgstr ""
-
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 #: model_terms:ir.ui.view,arch_db:contract.contract_template_form_view
@@ -1261,6 +1308,12 @@ msgstr ""
 msgid "Messages"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_contract__modification_ids
+#: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
+msgid "Modifications"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract__recurring_rule_type__monthly
 #: model:ir.model.fields.selection,name:contract.selection__contract_abstract_contract_line__auto_renew_rule_type__monthly
@@ -1487,6 +1540,11 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: contract
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
+msgid "Price unit"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract__pricelist_id
 #: model:ir.model.fields,field_description:contract.field_contract_contract__pricelist_id
@@ -1513,6 +1571,7 @@ msgstr ""
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_line__quantity
 #: model:ir.model.fields,field_description:contract.field_contract_template_line__quantity
+#: model_terms:ir.ui.view,arch_db:contract.portal_contract_page
 msgid "Quantity"
 msgstr ""
 
@@ -1660,6 +1719,11 @@ msgstr ""
 msgid "Send by Email"
 msgstr ""
 
+#. module: contract
+#: model:ir.model.fields,field_description:contract.field_contract_modification__sent
+msgid "Sent"
+msgstr ""
+
 #. module: contract
 #: model:ir.model.fields,field_description:contract.field_contract_abstract_contract_line__sequence
 #: model:ir.model.fields,field_description:contract.field_contract_line__sequence
diff --git a/contract/models/__init__.py b/contract/models/__init__.py
index 82e9c3b11..d8669b19f 100644
--- a/contract/models/__init__.py
+++ b/contract/models/__init__.py
@@ -7,6 +7,7 @@ from . import contract_template
 from . import contract
 from . import contract_template_line
 from . import contract_line
+from . import contract_modification
 from . import account_move
 from . import res_partner
 from . import contract_tag
diff --git a/contract/models/contract.py b/contract/models/contract.py
index eb156d98a..6b7f2a553 100644
--- a/contract/models/contract.py
+++ b/contract/models/contract.py
@@ -99,20 +99,71 @@ class ContractContract(models.Model):
         ondelete="restrict",
         readonly=True,
         copy=False,
-        track_visibility="onchange",
+        tracking=True,
     )
     terminate_comment = fields.Text(
-        string="Termination Comment",
-        readonly=True,
-        copy=False,
-        track_visibility="onchange",
+        string="Termination Comment", readonly=True, copy=False, tracking=True,
     )
     terminate_date = fields.Date(
-        string="Termination Date",
-        readonly=True,
-        copy=False,
-        track_visibility="onchange",
+        string="Termination Date", readonly=True, copy=False, tracking=True,
     )
+    modification_ids = fields.One2many(
+        comodel_name="contract.modification",
+        inverse_name="contract_id",
+        string="Modifications",
+    )
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        records = super().create(vals_list)
+        records._set_start_contract_modification()
+        return records
+
+    def write(self, vals):
+        if "modification_ids" in vals:
+            res = super(
+                ContractContract, self.with_context(bypass_modification_send=True)
+            ).write(vals)
+            self._modification_mail_send()
+        else:
+            res = super(ContractContract, self).write(vals)
+        return res
+
+    @api.model
+    def _set_start_contract_modification(self):
+        for record in self:
+            if record.contract_line_ids:
+                date_start = min(record.contract_line_ids.mapped("date_start"))
+            else:
+                date_start = record.create_date
+            record.write(
+                {
+                    "modification_ids": [
+                        (0, 0, {"date": date_start, "description": _("Contract start")})
+                    ]
+                }
+            )
+
+    @api.model
+    def _modification_mail_send(self):
+        for record in self:
+            modification_ids_not_sent = record.modification_ids.filtered(
+                lambda x: not x.sent
+            )
+            if modification_ids_not_sent:
+                contract_modification_subtype = self.env.ref(
+                    "contract.mail_message_subtype_contract_modification"
+                )
+                notified_partners = record.message_follower_ids.filtered(
+                    lambda x: contract_modification_subtype in x.subtype_ids
+                ).mapped("partner_id")
+                if notified_partners:
+                    record.message_post_with_template(
+                        self.env.ref("contract.mail_template_contract_modification").id,
+                        partner_ids=[(4, x.id) for x in notified_partners],
+                        email_layout_xmlid="contract.template_contract_modification",
+                    )
+                modification_ids_not_sent.write({"sent": True})
 
     def _compute_access_url(self):
         for record in self:
diff --git a/contract/models/contract_modification.py b/contract/models/contract_modification.py
new file mode 100644
index 000000000..ee493d0fd
--- /dev/null
+++ b/contract/models/contract_modification.py
@@ -0,0 +1,38 @@
+# Copyright 2020 Tecnativa - Víctor Martínez
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import api, fields, models
+
+
+class ContractModification(models.Model):
+
+    _name = "contract.modification"
+    _description = "Contract Modification"
+    _order = "date desc"
+
+    date = fields.Date(required=True, string="Date")
+    description = fields.Text(required=True, string="Description")
+    contract_id = fields.Many2one(
+        string="Contract",
+        comodel_name="contract.contract",
+        required=True,
+        ondelete="cascade",
+        index=True,
+    )
+    sent = fields.Boolean(string="Sent", default=False,)
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        records = super().create(vals_list)
+        if not self.env.context.get("bypass_modification_send"):
+            records.check_modification_ids_need_sent()
+        return records
+
+    def write(self, vals):
+        res = super().write(vals)
+        if not self.env.context.get("bypass_modification_send"):
+            self.check_modification_ids_need_sent()
+        return res
+
+    def check_modification_ids_need_sent(self):
+        self.mapped("contract_id")._modification_mail_send()
diff --git a/contract/models/contract_tag.py b/contract/models/contract_tag.py
index c45bf06c2..96196fbc7 100644
--- a/contract/models/contract_tag.py
+++ b/contract/models/contract_tag.py
@@ -9,7 +9,7 @@ class ContractTag(models.Model):
     _name = "contract.tag"
     _description = "Contract Tag"
 
-    name = fields.Char(requirment=True)
+    name = fields.Char(required=True)
     company_id = fields.Many2one(
         "res.company", string="Company", default=lambda self: self.env.company.id,
     )
diff --git a/contract/report/report_contract.xml b/contract/report/report_contract.xml
index 4a2ead661..891113b26 100644
--- a/contract/report/report_contract.xml
+++ b/contract/report/report_contract.xml
@@ -132,6 +132,50 @@
                                 </table>
                             </div>
                         </div>
+                        <div
+                            class="row"
+                            id="modification_info"
+                            t-if="o.modification_ids"
+                        >
+                            <div class="col-12">
+                                <p id="modification_info_p">
+                                    <strong>Modifications</strong>
+                                </p>
+                                <table class="table table-sm">
+                                    <thead>
+                                        <tr>
+                                            <th name="th_date">Date</th>
+                                            <th
+                                                name="th_description"
+                                                class="text-right"
+                                            >Description</th>
+                                        </tr>
+                                    </thead>
+                                    <tbody>
+                                        <t
+                                            t-foreach="o.modification_ids"
+                                            t-as="notification_id"
+                                        >
+                                            <tr>
+                                                <td name="td_date">
+                                                    <span
+                                                        t-field="notification_id.date"
+                                                    />
+                                                </td>
+                                                <td
+                                                    name="td_description"
+                                                    class="text-right"
+                                                >
+                                                    <div
+                                                        t-field="notification_id.description"
+                                                    />
+                                                </td>
+                                            </tr>
+                                        </t>
+                                    </tbody>
+                                </table>
+                            </div>
+                        </div>
                         <div id="total" class="row" name="total">
                             <div class="col-4 ml-auto">
                                 <table class="table table-sm">
diff --git a/contract/security/ir.model.access.csv b/contract/security/ir.model.access.csv
index b596040d3..414522d8a 100644
--- a/contract/security/ir.model.access.csv
+++ b/contract/security/ir.model.access.csv
@@ -9,3 +9,5 @@
 "contract_line_portal","Recurring portal","model_contract_line","base.group_portal",1,0,0,0
 "contract_template_line_manager","Recurring manager","model_contract_template_line","account.group_account_manager",1,1,1,1
 "contract_template_line_user","Recurring user","model_contract_template_line","account.group_account_invoice",1,0,0,0
+"contract_modification_user","Contract modifications - User","model_contract_modification","account.group_account_invoice",1,1,1,1
+"contract_modification_portal","Contract modifications - Portal","model_contract_modification","base.group_portal",1,0,0,0
diff --git a/contract/static/src/scss/frontend.scss b/contract/static/src/scss/frontend.scss
new file mode 100644
index 000000000..26c612817
--- /dev/null
+++ b/contract/static/src/scss/frontend.scss
@@ -0,0 +1,70 @@
+/* https://github.com/odoo/odoo/blob/14.0/addons/website/static/src/snippets/s_timeline/000.scss */
+.s_timeline {
+    .s_timeline_line {
+        position: relative;
+        &:before {
+            content: "";
+            position: absolute;
+            width: 1px;
+            top: 0px;
+            bottom: 0px;
+            left: 50%;
+            background-color: gray("800");
+        }
+    }
+    .s_timeline_row {
+        align-items: center;
+        .s_timeline_content {
+            align-items: center;
+            justify-content: flex-end;
+            width: 100%;
+            ~ .s_timeline_content {
+                justify-content: flex-start;
+            }
+        }
+        &.flex-row-reverse {
+            .s_timeline_content {
+                flex-direction: row-reverse;
+            }
+        }
+        @include media-breakpoint-up(md) {
+            &.flex-row-reverse {
+                .s_timeline_content {
+                    flex-direction: row-reverse;
+                    &:not(:last-child) {
+                        margin-left: 10%;
+                    }
+                }
+            }
+            &:not(.flex-row-reverse) {
+                .s_timeline_content:last-child {
+                    margin-left: 10%;
+                }
+            }
+        }
+    }
+    .s_timeline_date {
+        @include media-breakpoint-up(md) {
+            position: absolute;
+            left: 0%;
+            right: 0%;
+        }
+        @include media-breakpoint-down(sm) {
+            position: relative;
+            margin: 20px 0px;
+        }
+        span:not(.fa) {
+            display: inline-block;
+            padding: 5px;
+        }
+        .fa {
+            margin: 0 $grid-gutter-width/2;
+        }
+        text-align: center;
+    }
+    .s_timeline_icon {
+        flex: 0 0 auto;
+        margin: $grid-gutter-width/2;
+        z-index: 1;
+    }
+}
diff --git a/contract/tests/test_contract.py b/contract/tests/test_contract.py
index bef1b2a50..2e21f3c4f 100644
--- a/contract/tests/test_contract.py
+++ b/contract/tests/test_contract.py
@@ -28,6 +28,7 @@ class TestContractBase(common.SavepointCase):
             {
                 "name": "partner test contract",
                 "property_product_pricelist": cls.pricelist.id,
+                "email": "demo@demo.com",
             }
         )
         cls.product_1 = cls.env.ref("product.product_product_1")
@@ -170,6 +171,29 @@ class TestContract(TestContractBase):
         vals.update(overrides)
         return self.env["contract.template.line"].create(vals)
 
+    def test_add_modifications(self):
+        self.contract.message_subscribe(
+            partner_ids=self.contract.partner_id.ids,
+            subtype_ids=self.env.ref(
+                "contract.mail_message_subtype_contract_modification"
+            ).ids,
+        )
+        # Check initial modification auto-creation
+        self.assertEqual(len(self.contract.modification_ids), 1)
+        self.contract.write(
+            {
+                "modification_ids": [
+                    (0, 0, {"date": "2020-01-01", "description": "Modification 1"}),
+                    (0, 0, {"date": "2020-02-01", "description": "Modification 2"}),
+                ]
+            }
+        )
+        self.assertGreaterEqual(len(self.contract.message_partner_ids), 1)
+        mail_messages = self.env["mail.message"].search(
+            [("model", "=", "contract.contract"), ("res_id", "=", self.contract.id)]
+        )
+        self.assertGreaterEqual(len(mail_messages), 2)
+
     def test_check_discount(self):
         with self.assertRaises(ValidationError):
             self.acct_line.write({"discount": 120})
diff --git a/contract/views/assets.xml b/contract/views/assets.xml
index 7ef07a589..bdd94fa3e 100644
--- a/contract/views/assets.xml
+++ b/contract/views/assets.xml
@@ -16,6 +16,19 @@
             />
         </xpath>
     </template>
+    <template
+        id="assets_frontend"
+        inherit_id="web.assets_frontend"
+        name="contract assets"
+    >
+        <xpath expr="." position="inside">
+            <link
+                rel="stylesheet"
+                href="/contract/static/src/scss/frontend.scss"
+                type="text/css"
+            />
+        </xpath>
+    </template>
     <template id="assets_tests" inherit_id="web.assets_tests">
         <xpath expr="." position="inside">
             <script
diff --git a/contract/views/contract.xml b/contract/views/contract.xml
index 8f22f5add..b8bc04c4d 100644
--- a/contract/views/contract.xml
+++ b/contract/views/contract.xml
@@ -406,6 +406,18 @@
                             </field>
                             <field name="note" />
                         </page>
+                        <page name="modications" string="Modifications">
+                            <field
+                                name="modification_ids"
+                                attrs="{'readonly': [('is_terminated','=',True)]}"
+                            >
+                                <tree editable="bottom">
+                                    <field name="date" />
+                                    <field name="description" />
+                                    <field name="sent" />
+                                </tree>
+                            </field>
+                        </page>
                         <page name="info" string="Other Information">
                             <field name="create_invoice_visibility" invisible="1" />
                             <group>
diff --git a/contract/views/contract_portal_templates.xml b/contract/views/contract_portal_templates.xml
index f30c248f9..f0bd86cee 100644
--- a/contract/views/contract_portal_templates.xml
+++ b/contract/views/contract_portal_templates.xml
@@ -94,7 +94,7 @@
                 <t t-set="card_header">
                     <h5 class="mb-0">
                         <span>
-                            Contract Order - <span t-field="contract.name" />
+                            Contract - <span t-field="contract.name" />
                         </span>
                     </h5>
                 </t>
@@ -200,10 +200,26 @@
                             <table class="table table-sm" id="sales_order_table">
                                 <thead class="bg-100">
                                     <tr>
-                                        <th class="text-left">Description</th>
-                                        <th class="text-right">Recurrence</th>
-                                        <th class="text-right">Date of next invoice</th>
-                                        <th class="text-right">Last date invoice</th>
+                                        <th
+                                            name="th_name"
+                                            class="text-left"
+                                        >Description</th>
+                                        <th
+                                            name="th_quantity"
+                                            class="text-right"
+                                        >Quantity</th>
+                                        <th
+                                            name="th_price_unit"
+                                            class="text-right"
+                                        >Price unit</th>
+                                        <th
+                                            name="th_recurring_interval"
+                                            class="text-right"
+                                        >Recurrence</th>
+                                        <th
+                                            name="th_recurring_next_date"
+                                            class="text-right"
+                                        >Date of next invoice</th>
                                     </tr>
                                 </thead>
                                 <tbody class="contract_tbody">
@@ -212,10 +228,22 @@
                                         t-as="line"
                                     >
                                         <tr>
-                                            <td id="line_name">
+                                            <td name="td_name">
                                                 <span t-field="line.name" />
                                             </td>
-                                            <td class="text-right">
+                                            <td name="td_quantity" class="text-right">
+                                                <span t-field="line.quantity" />
+                                            </td>
+                                            <td name="td_price_unit" class="text-right">
+                                                <span
+                                                    t-field="line.price_unit"
+                                                    t-options='{"widget": "monetary", "display_currency": contract.currency_id}'
+                                                />
+                                            </td>
+                                            <td
+                                                name="td_recurring_interval"
+                                                class="text-right"
+                                            >
                                                 <span
                                                     t-field="line.recurring_interval"
                                                 />
@@ -241,16 +269,14 @@
                                                     t-if="line.recurring_rule_type=='yearly'"
                                                 >Year(s)</t>
                                             </td>
-                                            <td class="text-right">
+                                            <td
+                                                name="td_recurring_next_date"
+                                                class="text-right"
+                                            >
                                                 <span
                                                     t-field="line.recurring_next_date"
                                                 />
                                             </td>
-                                            <td class="text-right">
-                                                <span
-                                                    t-field="line.last_date_invoiced"
-                                                />
-                                            </td>
                                         </tr>
                                     </t>
                                 </tbody>
@@ -259,6 +285,52 @@
                     </div>
                 </t>
             </t>
+            <section
+                t-if="contract.modification_ids"
+                class="s_timeline pt24 pb48 o_colored_level"
+                data-snippet="s_timeline"
+            >
+                <div class="container s_timeline_line">
+                    <t t-set="last_modification_date" t-value="False" />
+                    <div
+                        class="s_timeline_row d-block d-md-flex flex-row"
+                        t-foreach="contract.modification_ids"
+                        t-as="modification"
+                    >
+                        <div class="s_timeline_date">
+                            <t
+                                t-if="not last_modification_date or last_modification_date!=modification.date"
+                            >
+                                <t
+                                    t-set="last_modification_date"
+                                    t-value="modification.date"
+                                />
+                                <span class="bg-white">
+                                    <b
+                                        class="o_default_snippet_text"
+                                        t-esc="last_modification_date"
+                                        t-options='{"widget": "date"}'
+                                    />
+                                </span>
+                            </t>
+                        </div>
+                        <div class="s_timeline_content s_timeline_content_left d-flex">
+                            <div
+                                class="s_timeline_card s_card card bg-white w-100"
+                                data-snippet="s_card"
+                            >
+                                <div class="card-body">
+                                    <div
+                                        class="card-text o_default_snippet_text"
+                                        t-field="modification.description"
+                                    />
+                                </div>
+                            </div>
+                        </div>
+                        <div class="s_timeline_content s_timeline_content_right" />
+                    </div>
+                </div>
+            </section>
             <!-- chatter -->
             <div id="contract_communication" class="mt-4">
                 <h2>Communication</h2>