APN and atgPay are different and separate payment systems. However, there are situations in which they could be used in conjunction. Below, you will find some potential scenarios in which both can be used.
Recommended Scenario: Using APN for Deposits
Using APN for deposits is the only time in which we would recommend using both of them together. At this time, atgPay does not have a way of doing deposits.
After the sale, please make sure you return the deposits for non-winning bidders. For winning bidders, if you charge the deposit, please note that it will not automatically be applied to the atgPay invoice. Should a bidder both be charged for the deposit and make payment through atgPay, you will need to refund them for the deposit through the ePay function of APN.
Not Recommended Scenario: Using APN to collect payment for invoices
Please note atgPay can be used to charge bidders' cards; there should be no need to charge bidders through APN. Charging bidders through APN can cause problems. When you charge a card through APN, you have to mark the invoice as paid in AuctionBuilder. Otherwise, our system will continue to send the bidder reminder emails (two emails are automatically sent, two and four days after the invoices are sent, assuming the bidder has not made payment). More importantly, if the invoice is marked as unpaid, the bidder will still be able to make payment through atgPay, resulting in double charges to the bidder. Even if no bidders are accidentally double charged, it will mean management of two different payment systems, which would simply make the work more complicated.
To prevent bidders from being double charged, mark the invoice as paid in AuctionBuilder before charging the cards in APN.