Order Status Request StandardHeader Standard Header Y MsgType = H 37 OrderID OrderID N 11 ClOrdID ClOrdID Y 109 ClientID ClientID N Used for firm identification in third-party transactions. 76 ExecBroker ExecBroker N Used for firm identification in third-party transactions. 55 Symbol Symbol Y 65 SymbolSfx SymbolSfx N 106 Issuer Issuer N 107 SecurityDesc SecurityDesc N 54 Side Side Y StandardTrailer Standard Trailer Y