PtyActvtyAdvc
                Mandatory
                MsgHdr
                Optional
                Party Activity
PtyActvty
                Mandatory
                Definition: Activity report of changes occurred for a party defined in the system.
Type: PartyStatement2
SysDt
                Mandatory
                Chng
                Repetition (0..n)
                SplmtryData
                Repetition (0..n)