>Hello,
>
>I have a question that doesn't have as much to do with VFP as it does with credit card validation by an application.
>
>I'm developing a system that will need to interface with credit card companies in order to receive payments from customers.
>
>The current set up involves a credit card machine (one of those with a keypad, a swipe slot, and a receipt printer).
>
>Currently, we are able to void a transaction by using one of the functions of the keypad and entering the REF number of the transaction we want to void. Unlike a regular charge/credit combination, in which a charge appears on the cardholder's statement and then a credit when we refund the money to him, a voided transaction doesn't appear on a cardholder's statement. It's as if the transaction never occurred.
>
>I'd like to know if the active-x's and other gizmos used to accept credit cards entirely by the vfp program would allow me to void transactions.
>
>Any help and input would be greatly appreciated!!!!
>
>Thanks!
>
>Alex

Hi Alex,

This may have more to do with batches and your card processor than software. Some processor's require a days charges to be closed (batched), some do it automatically. Only after a charge has been closed will you see a void appear. And some processors require a Return (Credit) instead of a Void after a transaction is closed.

In other words, charges are kept in what you might call a cache. If a void comes thru before the cache is saved to the processor, neither the charge nor the void appears on a customer statement.

Try closing the batch on your card terminal or wait a few days until it occurs automatically, then try the void and both should appear on a statement.

That's how it works with the activex controls that I use.