Return an ACH payment with a specified return reason code. Returns must be initiated within the time window specified by NACHA rules for each return code (typically 2 banking days for most codes, 60 calendar days for unauthorized debits). For a complete list of return codes and their meanings, see the ACH Return Reasons documentation.

Note:

• This endpoint does not modify the state of the financial account associated with the payment. If you would like to change the account state, use the Update financial account status endpoint.
• By default this endpoint is not enabled for your account. Please contact your implementations manager to enable this feature.