CtrctRegnClsrReq
                Mandatory
                GrpHdr
                Mandatory
                MsgId
                Mandatory
                CreDtTm
                Mandatory
                NbOfItms
                Mandatory
                InitgPty
                Mandatory
                FwdgAgt
                Optional
                Financial Institution Identification
FinInstnId
                Mandatory
                Definition: Unique and unambiguous identification of a financial institution, as assigned under an internationally recognised or proprietary identification scheme.
Type: FinancialInstitutionIdentification18
BICFI
                Optional
                ClrSysMmbId
                Optional
                LEI
                Optional
                Nm
                Optional
                PstlAdr
                Optional
                Othr
                Optional
                BrnchId
                Optional
                RegdCtrctClsr
                Repetition (1..n)
                SplmtryData
                Repetition (0..n)