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I just turned our software into testing mode and processed a transaction which sent it to https://test.authorize.net/gateway/transact.dll that it was successful. This is the sandbox URL correct so we will be good when TSL is disabled?

We have been fighting due to people calling in and complaining that their credit card is being declined because of a AVS Mismatch. We finally had someone that was so sure it was correct, we asked them to send a copy of their bank statement with the i...

We are using AIM and I can issue refunds just fine with payments made over our website, but we are now adding in for our card present transactions. Is there something different you have to do for a card present? Below is the data we are submitting an...