SctiesTxCxlReq
                Mandatory
                AcctOwnrTxId
                Mandatory
                AcctSvcrTxId
                Optional
                MktInfrstrctrTxId
                Optional
                PrcrTxId
                Optional
                AcctOwnr
                Optional
                SfkpgAcct
                Optional
                BlckChainAdrOrWllt
                Optional
                TxDtls
                Optional
                FinInstrmId
                Mandatory
                TradDt
                Optional
                SttlmDt
                Mandatory
                SttlmQty
                Mandatory
                Qty
                Choice
                Unit
Unit
                Choice
                Definition: Quantity expressed as a number, for example, a number of shares.
Type: DecimalNumber (Decimal)
Restrictions:
- FractionDigits: 17
 - TotalDigits: 18
 
FaceAmt
                Choice
                AmtsdVal
                Choice
                DgtlTknUnit
                Choice
                OrgnlAndCurFace
                Choice
                SttlmAmt
                Optional
                DlvrgSttlmPties
                Optional
                RcvgSttlmPties
                Optional
                Invstr
                Optional
                CxlRsn
                Optional
                FxCxl
                Optional
                SplmtryData
                Repetition (0..n)