AuthstnRspn
                Mandatory
                Hdr
                Mandatory
                Message Function
MsgFctn
                Mandatory
                Definition: Identifies the type of process related to the message.
Type: MessageFunction16Code (String)
Allowed Values:
- ADVC (Advice): Advice indicates where the sender informs the receiver of an activity that has been taken that requires a response.
- NOTI (Notification): Information about the transaction.
- CAAD (Capture Advice): Advice about the capture of an activity already performed (response expected).
- CANO (Capture Notification): Notification about the capture of an activity already performed (no response expected).
- REQU (Request): Message function is a request.
PrtcolVrsn
                Mandatory
                XchgId
                Optional
                ReTrnsmssnCntr
                Optional
                CreDtTm
                Mandatory
                BtchMgmtInf
                Optional
                InitgPty
                Mandatory
                RcptPty
                Optional
                TracData
                Repetition (0..n)
                Tracblt
                Repetition (0..n)
                Body
                Mandatory
                SctyTrlr
                Optional