AA
Debit advice
Receiver of the payment message needs to return a debit advice in response to the payment message.
AB
Message acknowledgement
Indicates that an acknowledge relating to receipt is required.
AC
Acknowledge - with detail and change
Description to be provided.
AD
Acknowledge - with detail, no change
Description to be provided.
AF
Debit advice/message acknowledgement
The sender wishes to receive both a Debit Advice and an acknowledgement of receipt for a payment message.
AP
Accepted
Indication that the referenced offer or transaction (e.g., cargo booking or quotation request) has been accepted.
CA
Conditionally accepted
Indication that the referenced offer or transaction (e.g., cargo booking or quotation request) has been accepted under conditions indicated in this message.
CO
Confirmation of measurements
Indication that the message contains the physical measurements on which the charges will be based.
NA
No acknowledgment needed
Self explanatory.
RE
Rejected
Indication that the referenced offer or transaction (e.g., cargo booking or quotation request) is not accepted.