Cancel or refund a transaction

Cancel or refund with a PSP reference

Method

Call cancelOrRefundTransactionWithPSPReference to cancel or refund a transaction where the transaction was processed online successfully and generated a PSP reference. The response from the server indicates if the cancel or refund was received, not if it was performed.

If the request is successful, if the pspReference of the original transaction is valid, and if the transaction was not already cancelled or refunded, the cancel or refund will always be performed. When the transactions are retrieved and their refunds are examined, each refund will have a processingState to indicate whether a cancelOrRefund request was sent.

Parameters

Name	Type	Description
`pspReference`	merchantReference	PSP reference of the original transaction.
`merchantReference`	NSString	Reference for the merchant, used in reporting.
`refundState`	ADYProcessingState	Indicates whether a `cancelOrRefund` request was sent.
`error`	NSError	Information about any errors that occurred.

Cancel or refund with a tender reference

Method

Call cancelOrRefundTransactionWithTenderReference to cancel or refund a transaction. This is used where the transaction was offline with the provided combination of tenderReference and UniqueTerminalId (Model-SerialNumber). The response from the server indicates if the cancel or refund was received, not if it was performed.

If the request is successful, if the he combination of tenderReference and UniqueTerminalId of the original transaction is valid of the original transaction is valid, and if the transaction was not already cancelled or refunded, the cancel or refund will always be performed. When the transactions are retrieved and their refunds are examined, each refund will have a processingState to indicate whether a cancelOrRefund request was sent.