InvcAssgnmtReq
                Mandatory
                Hdr
                Mandatory
                AssgnmtList
                Repetition (1..n)
                Idr
                Mandatory
                IsseDt
                Mandatory
                RltdDoc
                Repetition (0..n)
                AmtCutOffDt
                Optional
                Assgne
                Mandatory
                Assgnr
                Mandatory
                NtfctnInf
                Repetition (0..n)
                FinItm
                Repetition (0..n)
                ItmCntxt
                Mandatory
                FinDocRef
                Repetition (0..n)
                CdtDbtInd
                Mandatory
                TtlAmt
                Mandatory
                DueAmt
                Optional
                InstlmtInf
                Repetition (0..n)
                SeqId
                Mandatory
                PmtDueDt
                Mandatory
                Amt
                Mandatory
                PmtInstrm
                Optional
                PmtTp
                Mandatory
                PmtMtdCd
                Mandatory
                PyeeCdtrAcct
                Mandatory
                Identification
Id
                Mandatory
                Definition: Unique and unambiguous identification for the account between the account owner and the account servicer.
Type: AccountIdentification4Choice
IBAN
                Choice
                Othr
                Choice
                Tp
                Optional
                Ccy
                Optional
                Nm
                Optional
                PyeeFI
                Mandatory
                PyerDbtrAcct
                Optional
                PyerFI
                Optional
                AddtlInf
                Optional
                AssoctdDoc
                Repetition (0..n)
                VldtnStsInf
                Optional
                FincgSts
                Optional
                PrtryDtls
                Optional
                ItmCnt
                Mandatory
                CtrlSum
                Optional
                TtlReqAmt
                Optional
                TtlReqFincg
                Optional
                AgrdRate
                Optional
                FincgInstlmt
                Repetition (0..n)
                AddtlInf
                Optional
                VldtnStsInf
                Optional
                FincgSts
                Optional
                AssgnmtCnt
                Optional
                ItmCnt
                Optional
                CtrlSum
                Optional
                AttchdMsg
                Repetition (0..n)