-
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.
Learn More -
Acquirer
An acquirer is a bank that processes credit and debit card transactions for a merchant.
Learn More
AAP
An accredited ACH professional certified by the National Automated Clearing House Association (NACHA).