diff --git a/addons/sale_loyalty/i18n/sale_loyalty.pot b/addons/sale_loyalty/i18n/sale_loyalty.pot
index 04ac3088d51..a3a0b52ac30 100644
--- a/addons/sale_loyalty/i18n/sale_loyalty.pot
+++ b/addons/sale_loyalty/i18n/sale_loyalty.pot
@@ -182,6 +182,12 @@ msgstr ""
 msgid "ID"
 msgstr ""
 
+#. module: sale_loyalty
+#: code:addons/sale_loyalty/models/sale_order.py:0
+#, python-format
+msgid "Invalid partner."
+msgstr ""
+
 #. module: sale_loyalty
 #: code:addons/sale_loyalty/models/sale_order.py:0
 #, python-format
diff --git a/addons/sale_loyalty/models/sale_order.py b/addons/sale_loyalty/models/sale_order.py
index b2b6d2fe679..0a08a4e6a3f 100644
--- a/addons/sale_loyalty/models/sale_order.py
+++ b/addons/sale_loyalty/models/sale_order.py
@@ -947,6 +947,8 @@ class SaleOrder(models.Model):
                 not coupon.program_id.reward_ids or\
                 not coupon.program_id.filtered_domain(self._get_program_domain()):
                 return {'error': _('This code is invalid (%s).', code), 'not_found': True}
+            elif coupon.partner_id and coupon.partner_id != self.partner_id:
+                return {'error': _('Invalid partner.')}
             elif coupon.expiration_date and coupon.expiration_date < fields.Date.today():
                 return {'error': _('This coupon is expired.')}
             elif coupon.points < min(coupon.program_id.reward_ids.mapped('required_points')):