AuthstnRspn
                Mandatory
                Hdr
                Mandatory
                Body
                Mandatory
                Envt
                Mandatory
                Cntxt
                Optional
                Tx
                Mandatory
                AdddmData
                Optional
                PrcgRslt
                Mandatory
                RspnSrc
                Optional
                RsltData
                Mandatory
                Approval Code
ApprvlCd
                Optional
                Definition: Value assigned by the entity when the transaction is approved.
Type: Exact6AlphaNumericText (String)
Restrictions:
- Pattern: [a-zA-Z0-9\s]{6}
ErrDtl
                Optional
                OrgnlRsltData
                Optional
                ActnReqrd
                Optional
                Actn
                Repetition (0..n)
                AddtlActn
                Repetition (0..n)
                AddtlInf
                Repetition (0..n)
                ICCRltdData
                Optional
                PrtctdData
                Repetition (0..n)
                SplmtryData
                Repetition (0..n)
                SctyTrlr
                Optional