/enums/campaign_primary_status_reason.proto 

--- v20/enums/campaign_primary_status_reason.proto  2025-08-05 14:39:37.000000000 +0000
+++ v21/enums/campaign_primary_status_reason.proto  2025-08-05 14:39:42.000000000 +0000
@@ -156,5 +156,9 @@

     // All asset groups in this campaign are paused.
     ASSET_GROUPS_PAUSED = 38;
+
+    // The campaign has location restrictions but does not specify location
+    // targeting.
+    MISSING_LOCATION_TARGETING = 39;
   }
 }