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The Business Message Reject (j) message can reject an application-level message which fulfills session-level rules and cannot be rejected via any other means. Note if the message fails a session-level rule (e.g. body length is incorrect), a session-level Reject message should be issued.
See the session-level Reject message
Scenarios for Business Message Reject:
BusinessRejectReason
0 = Other
1 = Unknown ID
2 = Unknown Security
3 = Unsupported Message Type (receive a valid, but unsupported MsgType)
4 = Application not available
5 = Conditionally Required Field Missing
Whenever possible, it is strongly recommended that the cause of the failure be described in the Text (58) field (e.g. UNKNOWN SYBMOL: XYZ).
The business message reject format is as follows:
Business Message Reject
| Tag | Field Name | FIXML | Req'd | Comments | |||
|---|---|---|---|---|---|---|---|
| <Standard Message Header> | Y | MsgType = j | |||||
| 45 | RefSeqNum | @RefSeqNum | N | MsgSeqNum of rejected message | |||
| 372 | RefMsgType | @RefMsgTyp | Y | The MsgType (35) of the FIX message being referenced. | |||
| 379 | BusinessRejectRefID | @BizRejRefID | N | The value of the business-level ID field on the message being referenced. Required unless the corresponding ID field (see list above) was not specified. | |||
| 380 | BusinessRejectReason | @BizRejRsn | Y | Code to identify reason for a Business Message Reject (j) message. | |||
| 58 | Text | @Txt | N | Where possible, message to explain reason for rejection | |||
| 354 | EncodedTextLen | @EncTxtLen | C | Must be set if EncodedText (355) field is specified and must immediately precede it. | |||
| 355 | EncodedText | @EncTxt | C | Encoded (non-ASCII characters) representation of the Text (58) field in the encoded format specified via the MessageEncoding (347) field. | |||
| <Standard Message Trailer> | Y | ||||||
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