Field Expected value Description
MTID 0120 Identifies the message as an authorization advice.
Txn_Type J Identifies the transaction as an authorization advice.
Token Varies Identifies the card token associated with the transaction.
TXn_ID / Txn_ID Varies Identifies the EHI transaction message.
traceid_lifecycle Varies, when present Helps match the advice to the original authorization.
Auth_Code_DE38 Varies, when present May help match the advice to the original authorization.
Trans_link Varies, when present May help match the advice to the original authorization.
Resp_Code_DE39 Varies Indicates the authorization response result when populated.
Response_Source Varies, when present Indicates the source of the authorization response.
Response_Source_Why Varies, when present Indicates the reason for the authorization response.
Message_Source Varies, when present Indicates the source that generated the advice message.
Message_Why Varies, when present Indicates why the advice message was generated.