ReverseLastTransaction Method
Reverses the last attempted transaction.
Syntax
procedure ReverseLastTransaction();Remarks
If a transaction times out or you are otherwise unsure if it completed successfully, immediately use this method to reverse it. If the transaction had gone through successfully, the ResponseCode will be "00" and the other Response properties will show the results of the reversal. If the transaction was never actually received by the FDMS Closed Loop Gift Card System you will get a ResponseCode of "33", indicating that no previous transaction was found to reverse.
The ResponseCode and ResponseText properties indicate whether this transaction was successful.