CorpActnInstrStsAdvc
                Mandatory
                InstrId
                Optional
                OthrDocId
                Repetition (0..n)
                CorpActnGnlInf
                Mandatory
                CorpActnEvtId
                Mandatory
                Official Corporate Action Event Identification
OffclCorpActnEvtId
                Optional
                Definition: Official and unique reference assigned by the official central body/entity within each market at the beginning of a corporate action event.
Type: Max35Text (String)
Restrictions:
- MinLength: 1
- MaxLength: 35
ClssActnNb
                Optional
                EvtTp
                Mandatory
                InstrPrcgSts
                Repetition (1..n)
                CorpActnInstr
                Optional
                PrtctInstr
                Optional
                AddtlInf
                Optional
                SplmtryData
                Repetition (0..n)