RsndReq
                Mandatory
                MsgHdr
                Mandatory
                RsndSchCrit
                Repetition (1..n)
                BizDt
                Optional
                Sequence Number
SeqNb
                Optional
                Definition: Independent counter for message sequence, which is available once per party technical address. Specifies the identification sequence number for a specific couple sender/receiver.
Type: Max35Text (String)
Restrictions:
- MinLength: 1
 - MaxLength: 35
 
SeqRg
                Optional
                OrgnlMsgNmId
                Optional
                FileRef
                Optional
                Rcpt
                Mandatory
                SplmtryData
                Repetition (0..n)