Forum Moderators: buckworks
For example, U means unavailable (I think) on the AVS, meaning, the address verification could not be done because the address is invalid, not in their database, etc. Basically, it could be anything, but the bottom line, they attempted to retrieve the address info and could not. Which has nothing to do with the status of the account.
I'll say too, note that declined and transaction failed are two different things; decline can cause it to fail, but AVS can only cause it to fail if you require AVS on all transactions in your merchant account gateway.
We perform AVS, but have our merchant gateway account(s) set up not to decline on AVS failure. That info is returned to our site and the programming acts on it, but doesn't fail the trans. We manually review it.
below is a message we have received from authorize.net
To avoid errors when accepting gift cards (stored-value cards with a Visa, MasterCard, Discover or American Express logo), you will want to uncheck the U response code. For this type of transaction, the customer's billing address will most likely not be associated with the gift card, or will not be on file at the issuing bank.