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VBA POS to credit card terminal

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I have a point of sale written in VBA. currently to process credit cards we use a credit card processing machine that is external to the point of sale, and the amount is keyed in to the machine manually, then the card is swiped and the machine sends the info out to our processor and receives an answer and prints the receipt.

I would like to send the price to the credit card terminal from my pos. it has a usb port available that I assume is for programming. I want to use access to send the price, and to instruct it to send. once it receives an answer and the transaction is complete I want it to tell access that it is approved or denied.
Jul 31 '17 #1
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