SaleToPOIMsgStsReq
                Mandatory
                Hdr
                Mandatory
                MsgFctn
                Mandatory
                PrtcolVrsn
                Mandatory
                XchgId
                Mandatory
                CreDtTm
                Mandatory
                InitgPty
                Mandatory
                RcptPty
                Optional
                Tracblt
                Repetition (0..n)
                RlayId
                Mandatory
                Mandatory
                Tp
                Optional
                Issuer
Issr
                Optional
                Definition: Entity assigning the identification (for example merchant, acceptor, acquirer, or tax authority).
Type: PartyType33Code (String)
Allowed Values:
- OPOI (Originating POI): Point Of Interaction initiating the card payment transaction.
- MERC (Merchant): Merchant providing goods and service in the card payment transaction.
- ACCP (Acceptor): Card acceptor, party accepting the card and presenting transaction data to the acquirer.
- ITAG (Intermediary Agent): Party acting on behalf of other parties to process or forward data to other parties.
- ACQR (Acquirer): Entity acquiring card transactions.
- CISS (Card Issuer): Party that issues cards.
- DLIS (Delegate Issuer): Party to whom the card issuer delegates to authorise card payment transactions.
- MTMG (Master Terminal Manager): Responsible for the maintenance of a card payment acceptance terminal.
- TAXH (Tax Authority): Tax authority.
- TMGT (Terminal Manager): Responsible for one or several maintenance functions of a card payment acceptance terminal.
Ctry
                Optional
                ShrtNm
                Optional
                RmotAccs
                Optional
                Glctn
                Optional
                PrtcolNm
                Optional
                PrtcolVrsn
                Optional
                TracDtTmIn
                Mandatory
                TracDtTmOut
                Mandatory
                StsReq
                Mandatory
                SctyTrlr
                Optional