CorpActnInstrStsAdvc
                Mandatory
                InstrId
                Optional
                OthrDocId
                Repetition (0..n)
                Mandatory
                Account Servicer Document Identification
AcctSvcrDocId
                Choice
                Definition: Identification of the document assigned by the account servicer.
Type: Max35Text (String)
Restrictions:
- MinLength: 1
- MaxLength: 35
AcctOwnrDocId
                Choice
                DocNb
                Optional
                CorpActnGnlInf
                Mandatory
                InstrPrcgSts
                Repetition (1..n)
                CorpActnInstr
                Optional
                PrtctInstr
                Optional
                AddtlInf
                Optional
                SplmtryData
                Repetition (0..n)