This topic explains the validations for performing the duplicate check. The Instruction Identification (CdtTrfTxInf/PmtId/InstrId) is validated to check whether a transaction with same Instruction Identification is already present in the application.

In case if a transaction with same Instruction Identification is already present in the application, then transaction is treated as duplicate transaction and is moved to Business Override Queue (PQSOVRQU).