Cancel

Cancel an ongoing card transaction before it is completed.

Sequence Diagram

Process Flow

1. POS creates CancelRequest() object.
2. POS calls sendRequest() to send cancel request.
3. SDK sends the encoded request to Smart Terminal.
4. Smart Terminal displays "Cancellation Successful".
5. Smart Terminal returns response [000 : Transaction Cancelled] to SDK. You may refer to Response Codes.
6. POS calls receiveResponse() for response handling.
7. SDK returns the response value.
8. POS displays cancellation result on screen.