What is included in the response message of a successful authorization request?

In a successful authorization request, the response message typically includes the authorization code, which is a critical component of the transaction process. The authorization code acts as proof that the transaction has been approved by the financial institution or payment processor. It indicates that the requested funds are available and reserves them for the merchant until the transaction is settled. This code is essential for the merchant to complete the transaction and proceed with the delivery of goods or services.

While transaction completion date, payout details, and merchant identification number may be relevant to the broader context of the transaction process, they are not necessarily part of the immediate response message for an authorization request. The focus of this response is strictly on whether the transaction can proceed, and the authorization code is the definitive element that communicates that approval.