PtyModReq
                Mandatory
                MsgHdr
                Optional
                SysPtyId
                Mandatory
                Mandatory
                RspnsblPtyId
                Optional
                Mandatory
                AnyBIC
                Choice
                Proprietary Identification
PrtryId
                Choice
                Definition: Unique and unambiguous identifier, as assigned to a financial institution using a proprietary identification scheme.
Type: GenericIdentification36
Mandatory
                Issr
                Mandatory
                SchmeNm
                Optional
                NmAndAdr
                Choice
                LEI
                Optional
                Mod
                Repetition (1..n)
                SplmtryData
                Repetition (0..n)