CorpActnInstrStsAdvc
                Mandatory
                InstrId
                Optional
                OthrDocId
                Repetition (0..n)
                CorpActnGnlInf
                Mandatory
                InstrPrcgSts
                Repetition (1..n)
                CorpActnInstr
                Optional
                PrtctInstr
                Optional
                AddtlInf
                Optional
                AddtlTxt
                Repetition (0..n)
                Party Contact Narrative
PtyCtctNrrtv
                Repetition (0..n)
                Definition: Provides additional information regarding the party, for example, the contact unit or person responsible for the transaction identified in the message.
Type: Max350Text (String)
Restrictions:
- MinLength: 1
- MaxLength: 350
SplmtryData
                Repetition (0..n)