Dual-Message Processing

Dual-message processing is supported for all processors and acquirers.

To perform a sale, request the authorization and capture services at the same time. When the authorization is successful, the capture is processed immediately and the response message includes results for the authorization and for the capture. When the authorization is declined, the capture is not processed and the response message includes results only for the authorization.

For debit cards and prepaid cards, the issuing bank can approve a partial amount when the balance on the card is less than the requested authorization amount and when the transaction is enabled for partial authorization. When this happens, the capture is not processed. However, you can submit a capture request for the approved amount. For a limited number of processors and card types, partial authorizations are supported for credit cards in addition to debit cards and prepaid cards.