diff --git a/addon_service/configured_addon/link/serializers.py b/addon_service/configured_addon/link/serializers.py
index fea9efc3..b0848489 100644
--- a/addon_service/configured_addon/link/serializers.py
+++ b/addon_service/configured_addon/link/serializers.py
@@ -62,6 +62,7 @@ class ConfiguredLinkAddonSerializer(ConfiguredAddonSerializer):
     class Meta:
         model = ConfiguredLinkAddon
         read_only_fields = ["external_link_service"]
+        one_addon_per_node = False
         fields = [
             "id",
             "display_name",
diff --git a/addon_service/configured_addon/serializers.py b/addon_service/configured_addon/serializers.py
index ce6d92ad..ab0e6475 100644
--- a/addon_service/configured_addon/serializers.py
+++ b/addon_service/configured_addon/serializers.py
@@ -40,10 +40,14 @@ def get_current_user_is_owner(self, configured_addon: ConfiguredAddon):
     def create(self, validated_data):
         validated_data = self.fix_dotted_base_account(validated_data)
         base_account = validated_data["base_account"]
-        if ConfiguredAddon.objects.filter(
-            base_account__external_service=base_account.external_service,
-            authorized_resource__resource_uri=validated_data["resource_uri"],
-        ).exists():
+        validate_one_addon = getattr(self.Meta, "one_addon_per_node", True)
+        if (
+            validate_one_addon
+            and ConfiguredAddon.objects.filter(
+                base_account__external_service=base_account.external_service,
+                authorized_resource__resource_uri=validated_data["resource_uri"],
+            ).exists()
+        ):
             raise ValidationError(
                 f"ConfiguredAddon for requested addon and authorized_resource {validated_data['resource_uri']} already exists"
             )
@@ -61,6 +65,7 @@ def update(self, instance, validated_data):
     class Meta:
         resource_name = "configured-addons"
         model = ConfiguredAddon
+        one_addon_per_node = True
         fields = [
             "id",
             "url",