PtyModReq
                Mandatory
                MsgHdr
                Optional
                Message Identification
MsgId
                Mandatory
                Definition: Point to point reference, as assigned by the sender, to unambiguously identify the message.
Type: Max35Text (String)
Restrictions:
- MinLength: 1
- MaxLength: 35
CreDtTm
                Optional
                SysPtyId
                Mandatory
                Mod
                Repetition (1..n)
                SplmtryData
                Repetition (0..n)