Learn how to retrieve auditing records of changes to Custom Logic objects, including decision tables, decision trees, and functions, using a data query.

1. Submit a data query through UI or API with the following SQL query:

   SELECT username    AS Username,
          action      AS Action,
          objecttype  AS ObjectType,
          objectname  AS ObjectName,
          attributeid AS Attribute,
          oldvalue    AS OldValue,
          newvalue    AS NewValue,
          timestamp   AS Timestamp
   FROM   auditobjectchangeevent
   WHERE  namespace = 'com.zuora.custom.logic'
          AND year = 2025
          AND month = 7
   ORDER  BY timestamp DESC 
   LIMIT  100000

2. Check the status of the query job through UI or Get data query job API operation.
3. Download the query result when the job is completed. See the following example of the query result.

   Username,Action,ObjectType,ObjectName,Attribute,OldValue,NewValue,Timestamp
   user@zuora.com,CREATED,CustomLogicDecisionTable,Invoice,Name,,Amount Check,2025-07-16T20:59:30.683Z
   user@zuora.com,CREATED,CustomLogicDecisionTable,Invoice,Effective End Date & Time,,2025-07-31 10:00:00,2025-07-16T20:59:30.683Z
   user@zuora.com,CREATED,CustomLogicDecisionTable,Invoice,modifiedOn,,2025-07-16 20:59:29,2025-07-16T20:59:30.683Z
   user@zuora.com,CREATED,CustomLogicDecisionTable,Invoice,enabledOn,,2038-01-01 00:00:00,2025-07-16T20:59:30.683Z
   user@zuora.com,CREATED,CustomLogicDecisionTable,Invoice,createdOn,,2025-07-16 20:59:29,2025-07-16T20:59:30.683Z
   user@zuora.com,CREATED,CustomLogicDecisionTable,Invoice,Effective Start Date & Time,,2025-07-01 10:00:00,2025-07-16T20:59:30.683Z
   user@zuora.com,CREATED,CustomLogicDecisionTable,Invoice,ruleBody,,"//$START======================================\nrule ""Amount Check_1""\nsalience 2\nno-loop true\nwhen\n  \t$_invoice : Invoice ($__idInvoice : __id , AccountBoolean__c == """")\nthen\n \tmodify($_invoice) { AccountBoolean__c = """" ; }\nend\n//--------------------------------------------\n\n//$END========================================\n",2025-07-16T20:59:30.683Z
   user@zuora.com,UPDATED,CustomLogicDecisionTree,Invoice,modifiedOn,2025-07-07 20:58:59,2025-07-07 22:33:35,2025-07-07T22:33:35.148Z
   user@zuora.com,UPDATED,CustomLogicDecisionTree,Invoice,enabledOn,2038-01-01 00:00:00,2025-07-07 20:58:58,2025-07-07T20:58:59.875Z
   user@zuora.com,CREATED,CustomLogicFunction,CustomLogicFunction,script,,"((account) => {\n    /* Write your code here\n    * @param account ""Access the object definition via this parameter""\n    */\n})(account);",2025-07-01T04:21:01.272Z
   user@zuora.com,CREATED,CustomLogicFunction,CustomLogicFunction,output,,account,2025-07-01T04:21:01.272Z
   user@zuora.com,CREATED,CustomLogicFunction,CustomLogicFunction,input,,account,2025-07-01T04:21:01.272Z