BuyInRgltryAdvc
                Mandatory
                AcctOwnr
                Optional
                Safekeeping Account
SfkpgAcct
                Mandatory
                Definition: Account used in the original failing transaction.
Type: SecuritiesAccount19
Mandatory
                Tp
                Optional
                Nm
                Optional
                BuyInAttrbts
                Repetition (1..n)
                SplmtryData
                Repetition (0..n)