DescriptionThe order cancel reject 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.� Filled orders cannot be changed (i.e quantity reduced or price change. However, the broker/sellside may support increasing the order quantity on a currently filled order). When rejecting a Cancel/Replace Request (or Cancel Request), the Cancel Reject <3> message should provide the ClOrdID <11> which was� specified on the Cancel/Replace Request (or Cancel Request) message for identification, and the OrigClOrdId should be that of the last accepted order (except in the case of CxlRejReason <102> = �Unknown Order�. When rejecting an Order Mass Cancel Request, the ClOrdID <11> should be set to the ClOrdID <11> value of the Order Mass Cancel Request.� OrigClOrdID <41> is not specified for a rejected Order Mass Cancel Requests The execution message responds to accepted cancel request and cancel/replace request messages. Structure
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