Hi @Ayaz , @mburgess ! Please have a look at this spec as well! [ { "operation": "shift", "spec": { "*": { "BRANCH_CODE": "[&1].Fields.FLD0001", "CUST_NO": "[&1].Fields.FLD0002", "AC_DESC": "[&1].Fields.FLD0003", "CUST_AC_NO": "[&1].ExternalSystemIdentifier", "#1": "[&1].InstitutionId" } } } ]  Just FYI! ... View more