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Merchant Services Terms - A

These terms occur frequently in both the merchant services industry and on our website.
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Glossary Terms


ACH

See Automated Clearing House


Address Verification Service (AVS)

A fraud-reduction service that allows the Merchant to verify a Cardholder's billing address prior to completing a Card Not Present Transaction.


Algorithm

An algorithm is a mathematical formula which converts data to codes, in combination with a secret key for encryption.


Application Primary Account Number (PAN)

Application Primary Account Number (PAN) is the customer's account number. The number is linked to a particular application on the Integrated Circuit Card (ICC).


Approval Code

An Authorization Code indicating that the Transaction is approved and the Card may be honored.


Authorization

A required procedure by which a Merchant requests approval of a Transaction from the Issuer.


Authorization Code

The code sent by the Issuer in response to an Authorization request that indicates whether the Transaction is approved. Responses may include: "Approved", "Declined", "Declined Pick-Up" or "Referral" ("Call Auth").


Automated Clearing House (ACH)

The funds transfer system governed by the rules of the National Automated Clearing House Association. ACH allows financial institutions to clear interbank entries electronically. A Merchant's DDA is debited and credited via ACH.


Automated Teller Machine (ATM)

Automated Teller Machines, cash points, allow you to access cash with a credit card or other card associated with your bank account. You need to enter your Personal Identification Number (PIN) into the machine to access cash.


AVS

See Address Verification Service


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