diff --git a/partner_multi_relation/i18n/partner_multi_relation.pot b/partner_multi_relation/i18n/partner_multi_relation.pot
index b01213a76..12f7212e8 100644
--- a/partner_multi_relation/i18n/partner_multi_relation.pot
+++ b/partner_multi_relation/i18n/partner_multi_relation.pot
@@ -167,6 +167,11 @@ msgstr ""
 msgid "ID"
 msgstr ""
 
+#. module: partner_multi_relation
+#: model:ir.model.fields,help:partner_multi_relation.field_res_partner_relation_type_is_unique
+msgid "If a relation type is unique, then there cannot be 2relations with the same parties and the same type."
+msgstr ""
+
 #. module: partner_multi_relation
 #: model:ir.ui.view,arch_db:partner_multi_relation.search_res_partner_relation_all
 msgid "Include past records"
@@ -188,6 +193,11 @@ msgstr ""
 msgid "Inverse relations are from right to left partner."
 msgstr ""
 
+#. module: partner_multi_relation
+#: model:ir.model.fields,field_description:partner_multi_relation.field_res_partner_relation_type_is_unique
+msgid "Is Unique"
+msgstr ""
+
 #. module: partner_multi_relation
 #: model:res.partner.relation.type,name:partner_multi_relation.rel_type_assistant
 msgid "Is assistant of"
@@ -270,7 +280,7 @@ msgid "One Partner"
 msgstr ""
 
 #. module: partner_multi_relation
-#: code:addons/partner_multi_relation/models/res_partner_relation_type.py:82
+#: code:addons/partner_multi_relation/models/res_partner_relation_type.py:87
 #, python-format
 msgid "Organisation"
 msgstr ""
@@ -317,13 +327,13 @@ msgid "Partner relation"
 msgstr ""
 
 #. module: partner_multi_relation
-#: code:addons/partner_multi_relation/models/res_partner_relation.py:115
+#: code:addons/partner_multi_relation/models/res_partner_relation.py:125
 #, python-format
 msgid "Partners cannot have a relation with themselves."
 msgstr ""
 
 #. module: partner_multi_relation
-#: code:addons/partner_multi_relation/models/res_partner_relation_type.py:83
+#: code:addons/partner_multi_relation/models/res_partner_relation_type.py:88
 #, python-format
 msgid "Person"
 msgstr ""
@@ -352,7 +362,7 @@ msgid "Reflexive"
 msgstr ""
 
 #. module: partner_multi_relation
-#: code:addons/partner_multi_relation/models/res_partner_relation_type.py:196
+#: code:addons/partner_multi_relation/models/res_partner_relation_type.py:201
 #, python-format
 msgid "Reflexivity could not be disabled for the relation type {relation_type}. There are existing reflexive relations defined for the following partners: {partners}"
 msgstr ""
@@ -373,6 +383,13 @@ msgstr ""
 msgid "Relation Types"
 msgstr ""
 
+#. module: partner_multi_relation
+#: code:addons/partner_multi_relation/models/res_partner_relation.py:52
+#: code:addons/partner_multi_relation/models/res_partner_relation.py:59
+#, python-format
+msgid "Relation already exists!"
+msgstr ""
+
 #. module: partner_multi_relation
 #: code:addons/partner_multi_relation/models/res_partner_relation_all.py:316
 #, python-format
@@ -456,13 +473,13 @@ msgid "Symmetric"
 msgstr ""
 
 #. module: partner_multi_relation
-#: code:addons/partner_multi_relation/models/res_partner_relation.py:101
+#: code:addons/partner_multi_relation/models/res_partner_relation.py:111
 #, python-format
 msgid "The %s partner does not have category %s."
 msgstr ""
 
 #. module: partner_multi_relation
-#: code:addons/partner_multi_relation/models/res_partner_relation.py:95
+#: code:addons/partner_multi_relation/models/res_partner_relation.py:105
 #, python-format
 msgid "The %s partner is not applicable for this relation type."
 msgstr ""
@@ -478,19 +495,19 @@ msgid "The id of the object in the model this relation is based on."
 msgstr ""
 
 #. module: partner_multi_relation
-#: code:addons/partner_multi_relation/models/res_partner_relation.py:62
+#: code:addons/partner_multi_relation/models/res_partner_relation.py:72
 #, python-format
 msgid "The starting date cannot be after the ending date."
 msgstr ""
 
 #. module: partner_multi_relation
-#: code:addons/partner_multi_relation/models/res_partner_relation_type.py:165
+#: code:addons/partner_multi_relation/models/res_partner_relation_type.py:170
 #, python-format
 msgid "There are already relations not satisfying the conditions for partner type or category."
 msgstr ""
 
 #. module: partner_multi_relation
-#: code:addons/partner_multi_relation/models/res_partner_relation.py:154
+#: code:addons/partner_multi_relation/models/res_partner_relation.py:164
 #, python-format
 msgid "There is already a similar relation with overlapping dates"
 msgstr ""
@@ -506,7 +523,7 @@ msgid "This relation is the same from right to left as from left to right"
 msgstr ""
 
 #. module: partner_multi_relation
-#: model:ir.model.fields,field_description:partner_multi_relation.field_res_partner_relation_type_id_4102
+#: model:ir.model.fields,field_description:partner_multi_relation.field_res_partner_relation_type_id_4103
 #: model:ir.model.fields,field_description:partner_multi_relation.field_res_partner_relation_type_selection_type_id
 msgid "Type"
 msgstr ""