voidTransaction (method)

Voids a previously authorized transaction.

- (void)voidTransaction:(NSString*)transactionId

Discussion

This method voids a transaction that has been previously authorized, but which has not yet gone to settlement, or been "captured". The TransactionId parameter indicates to the Gateway which transaction is to be voided, and should contain the ResponseTransactionId from the original transaction.

Please see the gateway information in the table of contents to determine if your gateway supports Void transactions.

To cancel a transaction which has already been captured, use the Credit method.

The LinkPoint gateway requires you send the ResponseInvoiceNumber rather than the ResponseTransactionId. For the PSIGateXML Gateway, send the ResponseTransactionId as normal.