ACH Entry

An ACH entry is one individual payment order in the Automated Clearing House network, either a credit that pushes money into an account or a debit that pulls money out of it. The Nacha Operating Rules use "entry" as the standard word for a transaction. In the file format, each entry is an entry detail record within an ACH batch, containing a transaction code, the receiving bank's routing number, the receiver's account number, the amount, the receiver's name or ID and a unique trace number. Optional addenda records can carry remittance details. The ODFI sends entries into the network, and the RDFI posts them. An entry that cannot be posted comes back as a return, while an erroneous one may be corrected through an ACH reversal. Zero-dollar test entries are known as prenotes.