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AAP
An accredited ACH professional certified by the National Automated Clearing House Association (NACHA).
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ACH
Automated Clearing House - ACH is a reliable electronic funds transfer (EFT) system governed by National Automated Clearing House Association (NACHA).
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ACH Credit
An ACH credit occurs when the receiver’s account is credited.
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ACH Debit
An ACH debit occurs when the receiver’s account is debited.
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ACH Operator
ACH operator is the term used to describe the switching mechanism within the settlement network that provides information to the network participants. The ACH operator calculates the...
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ACK (ACH Payment Acknowledgement)
An ACK entry is an acknowledgement by the receiving depository financial institution (RDFI) confirming the receipt of a corporate credit or debit (CCD) credit entry.
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Acquirer
An acquirer is a bank that processes credit and debit card transactions for a merchant.
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ARC (Accounts Receivable Entry)
An ARC entry is a one time debit entry to the account of a receiver whom has previously been notified that their check (source document) will be...
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ATX (Financial EDI Acknowledgement)
An ATX entry is an acknowledgement by the receiving depository financial institution (RDFI) confirming the receipt of a corporate trade exchange (CTX) credit entry.
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Authorizations (Card Processing)
All transactions must be authorized via terminal, cash register, voice authorization, or automated voice response phone system (IVR).
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Automated Teller Machine (ATM)
An automated teller machine (ATM) is a device that allows for the withdrawal of cash without the need of a human teller or cashier.
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Auxiliary On-Us Field
A field on the magnetic ink character recognition (MICR) line of a check or share draft. This is an optional field that can be found to the...
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