Reject(3) — Production FIX API

Reject(3) is the session-level reject sent by the Deribit production FIX server for malformed messages or protocol violations, with tag-level reason codes.

The Reject(3) message should be issued when a message is received but cannot be properly processed due to a session-level or data structure rule violation. An example of when a reject may be appropriate would be the receipt of a message with invalid basic data (e.g. missing tags) which successfully passes decryption.

Arguments

Tag	Name	Type	Required	Comments
45	RefSeqNum	SeqNum	Yes	MsgSeqNum(34) of the rejected message
372	RefMsgType	String	No	The MsgType(35) of the FIX message being referenced
373	SessionRejectReason	int	No	Code to identity reason for rejection: 6 = Incorrect data format for value 11 = Invalid MsgType(35) 99 = Other
58	Text	String	No	Text string explaining the reason for rejection