CorpActnInstrStsAdvc
                Mandatory
                InstrId
                Optional
                OthrDocId
                Repetition (0..n)
                CorpActnGnlInf
                Mandatory
                InstrPrcgSts
                Repetition (1..n)
                CorpActnInstr
                Optional
                OptnNb
                Mandatory
                OptnTp
                Mandatory
                OptnFeatrs
                Optional
                AcctOwnr
                Optional
                SfkpgAcct
                Optional
                BlckChainAdrOrWllt
                Optional
                CshAcct
                Optional
                SfkpgPlc
                Optional
                Choice
                Ctry
                Choice
                TpAndId
                Choice
                Safekeeping Place Type
SfkpgPlcTp
                Mandatory
                Definition: Place of safekeeping as a code.
Type: SafekeepingPlace1Code (String)
Allowed Values:
- CUST (Shares Held At Local Custodian): Financial instruments held at a local custodian.
- ICSD (Shares Held At ICSD): Financial instruments held at an International Central Securities Depository.
- NCSD (Shares Held At NCSD): Financial instruments held at a National Central Securities Depository.
- SHHE (Shares Held Elsewhere): Used for certain financial instruments, for example, US mutual funds, where settlement is internal only, that is, there is no external movement of securities.
Mandatory
                Prtry
                Choice
                FinInstrmId
                Optional
                TtlElgblBal
                Optional
                InstdBal
                Optional
                UinstdBal
                Optional
                PrtctBal
                Optional
                StsQty
                Optional
                StsCshAmt
                Optional
                SlctnDealrFeeInd
                Optional
                PrtctInstr
                Optional
                AddtlInf
                Optional
                SplmtryData
                Repetition (0..n)