What are ACH returns?
When your customer uses their checking account to pay for goods or services, the Automated Clearing House (ACH) network processes the payment. If the ACH can’t collect funds from the customer’s bank, it responds with a return code to let you know what the problem was. Transactions that receive a return code are called ACH returns.
For a list of ACH return codes, visit https://support.paya.com/315924-ach-nacha-correction-and-reject-codes.