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The following definitions should help you further understand the terms used in the merchant services industry. As always, if you have any further questions, feel free to give us a call, toll-free at 1.877.877.9592

Acquirer: An Acquirer is a Visa / Master Card Affiliated Bank or Bank/Processor alliance that is in the business of processing credit card transactions for businesses and is always Acquiring new merchants.

Address Verification Service (AVS): The process of validating a cardholder’s given address against the issuer’s records, to determine accuracy and deter fraud. This service is provided as part of a credit card authorization for mail order/telephone order transactions. A code is returned with the authorization result that indicates the level of accuracy of the address match and helps secure the most favorable interchange rates.

Adjustment: An adjustment is initiated by the acquirer to correct a processing error. The error could be a duplication of a transaction or the result of a cardholder dispute. The acquirer debits or credits the merchant DDA account for the dollar amount of the adjustment.

Authorization: The process of verifying the credit card has sufficient funds (credit) available to cover the amount of the transaction. An authorization is obtained for every sale. An approval response in the form of a code sent to a merchant’s POS equipment (usually a terminal) from a card issuing financial institution that verifies availability of credit or funds in the cardholder account to make the purchase. Also see Point-Of-Sale.

An issuing financial institution’s electronic authorization request, which may include:

Approval — transaction was approved

Decline — transaction was not approved Call Center — response pending more information, merchant must call the toll-free authorization phone number.

Authorization Code: A code that a credit card issuing bank returns in an electronic message to the merchant’s POS equipment that indicates approval of the transaction. The code serves as proof of authorization.

Auto Close: A terminal feature that allows an end-of-day batch closing to occur automatically at a specified time, without having to be initiated by the merchant.