/errors/conversion_action_error.proto

--- v14/errors/conversion_action_error.proto    2023-10-18 04:25:28.000000000 +0000
+++ v15/errors/conversion_action_error.proto    2023-10-18 04:25:36.000000000 +0000
@@ -74,5 +74,9 @@

     // Update of this conversion action isn't supported by Google Ads API.
     UPDATE_NOT_SUPPORTED = 11;
+
+    // Rule-based attribution models are deprecated and not allowed to be set
+    // by conversion action.
+    CANNOT_SET_RULE_BASED_ATTRIBUTION_MODELS = 12;
   }
 }