DescriptionThe Order Cancel Reject <9> message is issued by the broker upon receipt of a cancel request or cancel/replace request message which cannot be honored. Requests to change price or decrease quantity are executed only when an outstanding quantity exists; orders which are filled cannot be changed. When rejecting a Cancel/Replace Request, the ClOrdID <11> of the replacement order in the request message is inserted in the ClOrdID <11> field of the Cancel Reject <3> message for identification. The execution message will be used to respond to accepted cancel request and cancel/replace request messages. Structure
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