You can refund an ACH Debit transaction and credit the bank account for the original transaction amount. A refund should be performed after the ACH Debit has batch processed. If the ACH Debit has not batch processed you should use a *ACH Void**.

Parameters

The following parameters are available to process ACH Refund.

parameter	description	required
mid	the Merchant ID (MID) assigned by `{user.company_name}` or your merchant service provider (MSP)	Yes
reference_id	A reference id that will be echo'd back in the message response.	No
transaction_id	the payment gateway unique transaction_id for the original ACH Credit or Debit	Yes
orderid	the unique order ID that was assigned to the original ACH debit transaction	Yes
metadata	a set of key-value pairs that you can attach to a payment. This can be useful for storing additional information about the payment in a structured format.	No

References