FIX Protocol Message 35=3: Reject

Session-level reject of a message that was received but cannot be processed, for example because a required tag is missing or a value has the wrong format. RefSeqNum (45) identifies the message and SessionRejectReason (373) gives the reason.

MsgType (tag 35): 3
FIX name: Reject
Category: Session (administrative)
FIX versions: FIX 4.0 to 4.4 and FIXT 1.1

Reject in each FIX version

The full field layout as defined in a specific version.

Required fields

Body fields that every Reject message must carry in FIX 4.4, in addition to the standard header and trailer.

45RefSeqNum

Field layout

All body fields in the order of the FIX 4.4 definition, with components and repeating groups indented. A field inside an optional component or group is required only when that component or group is present.

Tag	Field	Required
45	RefSeqNum	Required
371	RefTagID	Optional
372	RefMsgType	Optional
373	SessionRejectReason	Optional
58	Text	Optional
354	EncodedTextLen	Optional
355	EncodedText	Optional

Standard header and trailer

Every FIX message starts with the standard header, whose required fields are BeginString (8), BodyLength (9), MsgType (35), SenderCompID (49), TargetCompID (56), MsgSeqNum (34) and SendingTime (52), and ends with the trailer field CheckSum (10).

Decode a Reject message

All FIX message types · All FIX tags

Field and message data comes from the QuickFIX data dictionaries for FIX 4.0 to 5.0 SP2 and FIXT 1.1, used under the QuickFIX Software License. This product includes software developed by quickfixengine.org (http://www.quickfixengine.org/). Enumerated value names are converted to plain text for reading.