CtrctRegnClsrReq
                Mandatory
                GrpHdr
                Mandatory
                MsgId
                Mandatory
                CreDtTm
                Mandatory
                NbOfItms
                Mandatory
                InitgPty
                Mandatory
                FwdgAgt
                Optional
                FinInstnId
                Mandatory
                BrnchId
                Optional
                Optional
                LEI
LEI
                Optional
                Definition: Legal entity identification for the branch of the financial institution.
Type: LEIIdentifier (String)
Restrictions:
- Pattern: [A-Z0-9]{18,18}[0-9]{2,2}
 
Nm
                Optional
                PstlAdr
                Optional
                RegdCtrctClsr
                Repetition (1..n)
                SplmtryData
                Repetition (0..n)