Modify Rejected

Modify Rejected messages are sent in response to a Modify Order for an order which cannot be modified. Modify Rejected messages are unsequenced.

This message corresponds to a FIX Execution Report with MsgType (35) = 9 (Order Cancel Reject) and CxlRejResponseTo (434) = 2 (Order Cancel/Replace Request).

Cboe Titanium Cboe Futures Exchange BOEv3 Specification - Modify Rejected | Cboe