/enums/user_list_crm_data_source_type.proto 

--- v21/enums/user_list_crm_data_source_type.proto  2025-10-07 23:35:23.000000000 +0000
+++ v22/enums/user_list_crm_data_source_type.proto  2025-10-07 23:35:30.000000000 +0000
@@ -43,5 +43,8 @@

     // The uploaded data is from a third-party voter file.
     THIRD_PARTY_VOTER_FILE = 4;
+
+    // The uploaded data is third party partner data.
+    THIRD_PARTY_PARTNER_DATA = 5;
   }
 }