AcctMndtMntncAmdmntReq
                Mandatory
                Refs
                Mandatory
                Fr
                Optional
                CtrctDts
                Optional
                UndrlygMstrAgrmt
                Optional
                AcctId
                Repetition (1..n)
                AcctSvcrId
                Mandatory
                FinInstnId
                Mandatory
                BICFI
                Optional
                ClrSysMmbId
                Optional
                LEI
                Optional
                Nm
                Optional
                PstlAdr
                Optional
                Othr
                Optional
                Mandatory
                SchmeNm
                Optional
                Code
Cd
                Choice
                Definition: Name of the identification scheme, in a coded form as published in an external list.
Type: ExternalFinancialInstitutionIdentification1Code (String)
Restrictions:
- MinLength: 1
 - MaxLength: 4
 
Prtry
                Choice
                Issr
                Optional
                BrnchId
                Optional
                Mandatory
                Mndt
                Repetition (0..n)
                Grp
                Repetition (0..n)
                DgtlSgntr
                Repetition (0..n)
                SplmtryData
                Repetition (0..n)