If you determine that there are certain AVS codes that you do not want us to accept, under any circumstances, you can provide us with an optional whitelist matrix that will be used to accept or reject purchases based on the AVS result code. This would take the form of:

Be sure that your public IP address is added in the MIT whitelist. Is mandatory to make a payment using their QA environment.

The payments report can be specially useful when troubleshooting failed online payments. You can see the failed or pending payments by including "All" in the Payment Status and Transaction Status filters. By also activating all the fields with the gear icon, you will be able to see the AVS code, the CVD code, and the CC response code. In this way, you can tell your customers the reason why their payment might have been rejected. This can also be useful to determine if the AVS whitelist configured for your account is correct or it should be changed to be less/more strict.