girish.kc Posted May 12, 2011 Share Posted May 12, 2011 Hello, I am new to payment gateway. I am trying to implement http://www.firstdata.com as the payment gateway in my application. I found that the address Validation System(AVS) will work only after the approval of the transactions. This is strange!!. So I planed to do an pre-auth to check the address, and then do the actual transaction. But if the address validation is failed, I need to release the amount reserved by the pre-auth request. How can I do that. I don't find any way to do that. Void will cancel the completed transaction and not the pre-auth. I tried to post - auth with 0.00 amount, but still it does the ticket only transaction for the full amount reserved by the pre - auth request. Please help me. Girish Quote Link to comment https://forums.phpfreaks.com/topic/236236-wwwfirstdatacom-preauth-implementation/ Share on other sites More sharing options...
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