If you have a customer that handed over their card for pre-authorisation but on settling their bill they wish to:-
1. use a different card to pay their tab or
2. pay by a different payment type (i.e. cash),
then you will need to void the pre-authorisation.
To void the pre-authorisation you simply locate the tab and hit the Pay button which will present the following screen.
At this point you simply can press the Void Pre-Auth button and this will communicate with CardConnect to void the pre-authorisation.
Once successfully completed, the small card symbol next to that tab will disappear and you are free to complete the payment using any other method you like by pressing Pay again.
In the above example we have applied a cash payment to the tab after clearing the pre-authorisation.