AcctOpngAmdmntReq
                Mandatory
                Refs
                Mandatory
                Fr
                Optional
                CtrctDts
                Optional
                UndrlygMstrAgrmt
                Optional
                Acct
                Mandatory
                AcctSvcrId
                Mandatory
                Org
                Mandatory
                Mndt
                Repetition (0..n)
                Identification
Id
                Mandatory
                Definition: Unique and unambiguous identification of the mandate.
Type: Max35Text (String)
Restrictions:
- MinLength: 1
 - MaxLength: 35
 
AplblChanl
                Repetition (1..n)
                ReqrdSgntrNb
                Mandatory
                SgntrOrdrInd
                Mandatory
                MndtHldr
                Repetition (0..n)
                BkOpr
                Repetition (1..n)
                StartDt
                Optional
                EndDt
                Optional
                Grp
                Repetition (0..n)
                RefAcct
                Optional
                DgtlSgntr
                Repetition (0..n)
                SplmtryData
                Repetition (0..n)