BuyInRgltryAdvc
                Mandatory
                AcctOwnr
                Optional
                SfkpgAcct
                Mandatory
                BuyInAttrbts
                Repetition (1..n)
                Ref
                Mandatory
                BuyInStat
                Mandatory
                BuyInDfrrl
                Mandatory
                FinInstrmId
                Optional
                ISIN
                Optional
                OthrId
                Repetition (0..n)
                Mandatory
                Sfx
                Optional
                Type
Tp
                Mandatory
                Definition: Type of the identification.
Type: IdentificationSource3Choice
Cd
                Choice
                Prtry
                Choice
                Desc
                Optional
                Qty
                Optional
                BuyInPric
                Optional
                CshCompstnAmt
                Optional
                BuyInSttlmDt
                Optional
                SplmtryData
                Repetition (0..n)