diff --git a/pms/models/pms_checkin_partner.py b/pms/models/pms_checkin_partner.py
index d0a7b1b9f..ecb824cd4 100644
--- a/pms/models/pms_checkin_partner.py
+++ b/pms/models/pms_checkin_partner.py
@@ -282,10 +282,6 @@ class PmsCheckinPartner(models.Model):
         inverse_name="checkin_partner_possible_customer_id",
     )
 
-    partner_relationship = fields.Char(
-        string="Partner relationship", help="Family relationship between travelers"
-    )
-
     signature = fields.Image(
         string="Signature",
         help="Signature of the guest",
diff --git a/pms/views/pms_checkin_partner_views.xml b/pms/views/pms_checkin_partner_views.xml
index 8d2cba6f9..0068181ad 100644
--- a/pms/views/pms_checkin_partner_views.xml
+++ b/pms/views/pms_checkin_partner_views.xml
@@ -115,7 +115,6 @@
                             <field name="reservation_id" />
                             <field name="folio_id" />
                             <field name="identifier" />
-                            <field name="partner_relationship" />
                             <field name="signature" />
                             <field name="sign_on" />
                             <field name="pms_property_id" invisible="1" />
diff --git a/pms_l10n_es/models/pms_checkin_partner.py b/pms_l10n_es/models/pms_checkin_partner.py
index e72ab0125..02122cc61 100644
--- a/pms_l10n_es/models/pms_checkin_partner.py
+++ b/pms_l10n_es/models/pms_checkin_partner.py
@@ -22,6 +22,33 @@ class PmsCheckinPartner(models.Model):
         compute="_compute_support_number",
     )
 
+    ses_partners_relationship = fields.Selection(
+        selection=[
+            ("AB", "Abuelo/a"),
+            ("BA", "Bisabuelo/a"),
+            ("BN", "Bisnieto/a"),
+            ("CD", "Cuñado/a"),
+            ("CY", "Cónyuge"),
+            ("HJ", "Hijo/a"),
+            ("HR", "Hermano"),
+            ("NI", "Nieto/a"),
+            ("PM", "Padre o Madre"),
+            ("SB", "Sobrino/a"),
+            ("SG", "Suegro/a"),
+            ("TI", "Tío/a"),
+            ("YN", "Yerno o Nuera"),
+            ("TU", "Tutor/a"),
+            ("OT", "Otro"),
+        ],
+        required=False,
+    )
+
+    ses_related_checkin_partner_id = fields.Many2one(
+        comodel_name="pms.checkin.partner",
+        string="Related checkin partner",
+        required=False,
+    )
+
     @api.depends("partner_id")
     def _compute_support_number(self):
         for record in self:
diff --git a/pms_l10n_es/views/pms_checkin_partner_views.xml b/pms_l10n_es/views/pms_checkin_partner_views.xml
index b5552506a..0e2716674 100644
--- a/pms_l10n_es/views/pms_checkin_partner_views.xml
+++ b/pms_l10n_es/views/pms_checkin_partner_views.xml
@@ -8,6 +8,10 @@
             <xpath expr="//field[@name='document_expedition_date']" position="after">
                 <field name="support_number" />
             </xpath>
+            <xpath expr="//field[@name='signature']" position="before">
+                <field name="ses_related_checkin_partner_id" />
+                <field name="ses_partners_relationship" />
+            </xpath>
         </field>
     </record>
 </odoo>