Reject (3)

Sent by the server in response to an invalid message.

35MsgType3Reject message type
45RefSeqNum2Sequence number of the rejected message
371RefTagID38Tag number of the rejected field. This is included when there is a non-null tag, usually one of: SenderCompId (49), TargetCompId (56), MsgSeqNum (34)
372RefMsgTypeDMessage type of the rejected message
58TextMissing quantityHuman-readable description of the reason for the rejection
373SessionRejectReason1Code to identify the rejection reason (see below)

Rejection Reason Codes

SessionRejectReason (373)Description
1Required tag missing
5Value incorrect for this tag
6Incorrect data format for value
11Invalid MsgType