Field Expected value Description
MTID 0120 May identify an authorization reversal related to an Automated Fuel Dispenser advice.
MTID 0400 Identifies an authorization reversal request.
MTID 0420 Identifies an authorization reversal advice.
Txn_Type D Identifies the transaction as an authorization reversal.
Token Varies Identifies the card token associated with the transaction.
TXn_ID / Txn_ID Varies Identifies the EHI transaction message.
Txn_Amt Varies Reversal transaction amount. Used to determine full or partial reversal impact.
Bill_Amt Varies Billing amount included in the reversal message. May differ from the original due to exchange rate movement.
traceid_lifecycle Varies, when present Helps match the reversal to the original authorization.
Auth_Code_DE38 Varies, when present May help match the reversal to the original authorization.
Trans_link Varies, when present May help match the reversal to the original authorization.
SendingAttemptCount Varies May indicate repeated delivery attempts.