Fixes #7771: Group assignment should be optional when creating contacts via REST API

docs/release-notes/version-3.1.md

@@ -3,6 +3,7 @@
 ### Bug Fixes
 
 * [#7756](https://github.com/netbox-community/netbox/issues/7756) - Fix AttributeError exception when editing an IP address assigned to a FHRPGroup
+* [#7771](https://github.com/netbox-community/netbox/issues/7771) - Group assignment should be optional when creating contacts via REST API
 
 ---
 

netbox/tenancy/api/serializers.py

@@ -79,7 +79,7 @@ class ContactRoleSerializer(PrimaryModelSerializer):
 
 class ContactSerializer(PrimaryModelSerializer):
     url = serializers.HyperlinkedIdentityField(view_name='tenancy-api:contact-detail')
-    group = NestedContactGroupSerializer(required=False, allow_null=True)
+    group = NestedContactGroupSerializer(required=False, allow_null=True, default=None)
 
     class Meta:
         model = Contact

netbox/tenancy/tests/test_api.py

@@ -200,7 +200,6 @@ class ContactTest(APIViewTestCases.APIViewTestCase):
             },
             {
                 'name': 'Contact 6',
-                'group': contact_groups[1].pk,
             },
         ]