AVS (Address Verification System) requires you to get a billing zip code from your customer and during the transaction authorization process matches that address to the one the credit card issuer has on file for the card. Having this information is an important fraud investigation tool for credit card issuers, and is extremely helpful in the case a transaction is disputed. In fact, performing this check is so important that you will be charged more to process a transaction if you do not perform the AVS check—This is why ReceivablesPro requires that you enter a billing zip code for each saved credit card so that the system can perform an AVS check on every transaction processed.
However, ReceivablesPro will process the transaction regardless of the AVS result because there are a number of reasons why it might fail for a valid transaction. For example, the AVS system may be momentarily down, the card may not be found in the AVS system, or your customer moved recently and the AVS system hasn’t yet caught up.
NOTE: To avoid an extra charge you are required to perform the AVS check—not to get a positive response.