PtyModReq
                Mandatory
                MsgHdr
                Optional
                SysPtyId
                Mandatory
                Mod
                Repetition (1..n)
                ScpIndctn
                Mandatory
                ReqdMod
                Mandatory
                SysPtyDt
                Choice
                PtyId
                Choice
                PtyNm
                Choice
                CtctDtls
                Choice
                TechAdr
                Choice
                PtyAdr
                Choice
                ResTp
                Choice
                LckSts
                Choice
                SysRstrctn
                Choice
                Valid From
VldFr
                Mandatory
                Definition: Specifies the date from which the restriction is valid.
Type: ISODateTime
Restrictions:
VldTo
                Optional
                Tp
                Mandatory
                MktSpcfcAttr
                Choice
                SplmtryData
                Repetition (0..n)