The business message reject <j> message is issued by the server prior to entering the trading core function, when a message is received but cannot be properly processed due to business level rule violation. The reason of the rejection may be given in the Text <58> field.

Tag	Required	Comments
Standard Header	Yes	MsgType <35> = j
45	Yes	MsgSeqNum <34> of the rejected message
372	Yes	The MsgType <35> of the message being referenced
379	No	The value of the business level ID field on the message being referenced
380	Yes	Code to identify the reason for the BusinessMessage Reject <j> message
58	No	Message that explains the reject reason
Standard trailer	Yes

Below is a list of messages