diff --git a/contract/i18n/am.po b/contract/i18n/am.po
index d54bdcd08..d82360895 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
@@ -1261,6 +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
@@ -1660,6 +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/ar.po b/contract/i18n/ar.po
index c85809de1..5a747acac 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
@@ -1262,6 +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
@@ -1661,6 +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/bg.po b/contract/i18n/bg.po
index f74967897..fec6ed2d4 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
@@ -1261,6 +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
@@ -1661,6 +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/bs.po b/contract/i18n/bs.po
index 265aae11a..6828f20f4 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
@@ -1261,6 +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
@@ -1660,6 +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/ca.po b/contract/i18n/ca.po
index f7cb4014f..76cadf193 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
@@ -1283,6 +1335,12 @@ 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
@@ -1684,6 +1742,11 @@ 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/cs.po b/contract/i18n/cs.po
index 092e8fabc..4cb2e742e 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
@@ -1261,6 +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
@@ -1660,6 +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/da.po b/contract/i18n/da.po
index 94850f928..ec401f315 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
@@ -1261,6 +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
@@ -1660,6 +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/de.po b/contract/i18n/de.po
index 0e1d55609..4bd698d15 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
@@ -1309,6 +1361,12 @@ 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
@@ -1709,6 +1767,11 @@ 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..1b3ab1bd4 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
@@ -1265,6 +1317,12 @@ 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
@@ -1664,6 +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/en_GB.po b/contract/i18n/en_GB.po
index 7bb280fab..977f641a6 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
@@ -1262,6 +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
@@ -1661,6 +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/es_AR.po b/contract/i18n/es_AR.po
index 65a905924..4a2be6bff 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
@@ -1327,6 +1379,12 @@ 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
@@ -1728,6 +1786,11 @@ 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..115eb724e 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
@@ -1257,6 +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
@@ -1656,6 +1714,11 @@ 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..da96ae208 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
@@ -1260,6 +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
@@ -1659,6 +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/es_CR.po b/contract/i18n/es_CR.po
index 33802af87..8b48a7df2 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
@@ -1262,6 +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
@@ -1661,6 +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/es_DO.po b/contract/i18n/es_DO.po
index a629ee3fa..17f955424 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
@@ -1260,6 +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
@@ -1659,6 +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/es_EC.po b/contract/i18n/es_EC.po
index c05e02518..3afb85e25 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
@@ -1260,6 +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
@@ -1659,6 +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/es_MX.po b/contract/i18n/es_MX.po
index 473dc3f66..4062a29ae 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
@@ -1265,6 +1317,12 @@ 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
@@ -1664,6 +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/es_PY.po b/contract/i18n/es_PY.po
index cd2c0ff95..a849a4e49 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
@@ -1260,6 +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
@@ -1659,6 +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/es_VE.po b/contract/i18n/es_VE.po
index aa990c639..c6ab0cd84 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
@@ -1262,6 +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
@@ -1661,6 +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/et.po b/contract/i18n/et.po
index e573804fd..04b8b9a59 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
@@ -1260,6 +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
@@ -1659,6 +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/eu.po b/contract/i18n/eu.po
index 599e61348..51d481dbf 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
@@ -1259,6 +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
@@ -1658,6 +1716,11 @@ 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..976bf15f5 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
@@ -1261,6 +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
@@ -1660,6 +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/fi.po b/contract/i18n/fi.po
index af762bfa2..4d69d4a98 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
@@ -1312,6 +1364,12 @@ 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
@@ -1715,6 +1773,11 @@ 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..dac21edb3 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
@@ -1314,6 +1366,12 @@ 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
@@ -1718,6 +1776,11 @@ 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..5de330c43 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
@@ -1263,6 +1315,12 @@ 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
@@ -1662,6 +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/fr_CH.po b/contract/i18n/fr_CH.po
index 40bb3c5e6..23e0861a9 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
@@ -1262,6 +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
@@ -1661,6 +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/gl.po b/contract/i18n/gl.po
index c4caf4738..ec7df2a97 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
@@ -1301,6 +1353,12 @@ 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
@@ -1710,6 +1768,11 @@ 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..9dbde10c5 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
@@ -1260,6 +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
@@ -1659,6 +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/he.po b/contract/i18n/he.po
index 3fd286221..a1fedfe2c 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
@@ -1261,6 +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
@@ -1660,6 +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/hi_IN.po b/contract/i18n/hi_IN.po
index 02165b842..2e4c2782a 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
@@ -1288,6 +1340,12 @@ 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
@@ -1694,6 +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/hr.po b/contract/i18n/hr.po
index cc091c17f..8f70c0c25 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
@@ -1297,6 +1349,12 @@ 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
@@ -1705,6 +1763,11 @@ 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..99db586f2 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
@@ -1296,6 +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
@@ -1705,6 +1763,11 @@ 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..3c012187d 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
@@ -1264,6 +1316,12 @@ 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
@@ -1663,6 +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/id.po b/contract/i18n/id.po
index 396ea4ccd..0723f791d 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
@@ -1261,6 +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
@@ -1660,6 +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/it.po b/contract/i18n/it.po
index 501c5d016..88ec27181 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
@@ -1320,6 +1372,12 @@ 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
@@ -1721,6 +1779,11 @@ 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..2c7c5a358 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
@@ -1261,6 +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
@@ -1660,6 +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/ko.po b/contract/i18n/ko.po
index a807e1cda..74eb53520 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
@@ -1261,6 +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
@@ -1660,6 +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/lt.po b/contract/i18n/lt.po
index 41d6bb05d..8ba998bb4 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
@@ -1262,6 +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
@@ -1661,6 +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_LT.po b/contract/i18n/lt_LT.po
index cbd434a03..a21cabb15 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
@@ -1263,6 +1315,12 @@ 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
@@ -1662,6 +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/lv.po b/contract/i18n/lv.po
index 00d786e32..8e4c5d8c3 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
@@ -1262,6 +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
@@ -1661,6 +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/mk.po b/contract/i18n/mk.po
index 9d631d18d..5fe604c55 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
@@ -1261,6 +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
@@ -1660,6 +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/mn.po b/contract/i18n/mn.po
index 258d58a79..8a21646f6 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
@@ -1261,6 +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
@@ -1660,6 +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/nb.po b/contract/i18n/nb.po
index 8c55cd8fb..997cd62da 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
@@ -1262,6 +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
@@ -1661,6 +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_NO.po b/contract/i18n/nb_NO.po
index 839ecccc5..181f797a7 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
@@ -1263,6 +1315,12 @@ 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
@@ -1662,6 +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.po b/contract/i18n/nl.po
index 4b55b4793..1620db76d 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
@@ -1328,6 +1380,12 @@ 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
@@ -1729,6 +1787,11 @@ 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..dcbaea34d 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
@@ -1262,6 +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
@@ -1661,6 +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/nl_NL.po b/contract/i18n/nl_NL.po
index dc686352f..776955e03 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
@@ -1286,6 +1338,12 @@ 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
@@ -1691,6 +1749,11 @@ 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..aaeed5672 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
@@ -1263,6 +1315,12 @@ 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
@@ -1662,6 +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/pt.po b/contract/i18n/pt.po
index 66927ce5d..f0bdc8934 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
@@ -1316,6 +1368,12 @@ 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
@@ -1719,6 +1777,11 @@ 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..29730aa48 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
@@ -1309,6 +1361,12 @@ 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
@@ -1710,6 +1768,11 @@ 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..8f1124a89 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
@@ -1267,6 +1319,12 @@ 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
@@ -1666,6 +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/ro.po b/contract/i18n/ro.po
index 3304a49f0..33bfda749 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
@@ -1266,6 +1318,12 @@ 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
@@ -1665,6 +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/ru.po b/contract/i18n/ru.po
index 1dcacbd70..c4ae2a321 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
@@ -1287,6 +1339,12 @@ 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
@@ -1693,6 +1751,11 @@ 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..5c8084640 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
@@ -1261,6 +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
@@ -1660,6 +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/sk_SK.po b/contract/i18n/sk_SK.po
index 4e9246d2c..6c0cc0fbd 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
@@ -1263,6 +1315,12 @@ 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
@@ -1662,6 +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/sl.po b/contract/i18n/sl.po
index d8d176e9b..f5049a4f1 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
@@ -1261,6 +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
@@ -1660,6 +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/sr.po b/contract/i18n/sr.po
index 00154cb5a..eff946afe 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
@@ -1261,6 +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
@@ -1660,6 +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/sr@latin.po b/contract/i18n/sr@latin.po
index 5c8261774..206da1313 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
@@ -1262,6 +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
@@ -1661,6 +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/sv.po b/contract/i18n/sv.po
index 52ce66d4c..58f23286b 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
@@ -1261,6 +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
@@ -1660,6 +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/th.po b/contract/i18n/th.po
index d8550d54a..7cc7ffc68 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
@@ -1261,6 +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
@@ -1660,6 +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/tr.po b/contract/i18n/tr.po
index b7173df07..d1faa5ebe 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
@@ -1301,6 +1353,12 @@ 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
@@ -1712,6 +1770,11 @@ 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..de717b2fc 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
@@ -1294,6 +1346,12 @@ 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
@@ -1703,6 +1761,11 @@ 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..8bcbf5225 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
@@ -1262,6 +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
@@ -1661,6 +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/vi.po b/contract/i18n/vi.po
index 402ca218d..87229bc9a 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
@@ -1260,6 +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
@@ -1659,6 +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/vi_VN.po b/contract/i18n/vi_VN.po
index f9a0981fd..7d78b5a4e 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
@@ -1262,6 +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
@@ -1661,6 +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/zh_CN.po b/contract/i18n/zh_CN.po
index cded8c192..410f948cf 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
@@ -1306,6 +1358,12 @@ 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
@@ -1707,6 +1765,11 @@ 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..2461381bd 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
@@ -1261,6 +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
@@ -1660,6 +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