BuyInRgltryAdvc
                Mandatory
                AcctOwnr
                Optional
                SfkpgAcct
                Mandatory
                Mandatory
                Type
Tp
                Optional
                Definition: Specifies the type of securities account.
Type: GenericIdentification30
Mandatory
                Issr
                Mandatory
                SchmeNm
                Optional
                Nm
                Optional
                BuyInAttrbts
                Repetition (1..n)
                SplmtryData
                Repetition (0..n)