The Don’t Know Trade (DK) message notifies a trading partner that an electronically received execution has been rejected. This message can be thought of as an execution reject message.

Added in protocol FIX.4.0

See in: FIX.4.0, FIX.4.1, FIX.4.2, FIX.4.3, FIX.5.0, FIX.5.0SP1, FIX.5.0SP2, FIX.5.0SP2 EP240.

Field or Component Name Description Is Required Added Is Deprecated
Block StandardHeader MsgType = Q Y FIX.4.0
37 OrderID Broker Order ID as identified on problem execution Y FIX.4.0
198 SecondaryOrderID FIX.4.4
17 ExecID Execution ID of problem execution Y FIX.4.0
127 DKReason Y FIX.4.0
Block Instrument Insert here the set of "Instrument" (symbology) fields defined in "Common Components of Application Messages" Y FIX.4.3
ImplicitBlockRepeating UndInstrmtGrp Number of underlyings FIX.4.4
ImplicitBlockRepeating InstrmtLegGrp Number of Legs FIX.4.4
54 Side Y FIX.4.0
Block OrderQtyData Insert here the set of "OrderQtyData" fields defined in "Common Components of Application Messages" Y FIX.4.3
32 LastQty Required if specified on the ExecutionRpt FIX.4.0
31 LastPx Required if specified on the ExecutionRpt FIX.4.0
58 Text FIX.4.0
354 EncodedTextLen Must be set if EncodedText (355) field is specified and must immediately precede it. FIX.4.2
355 EncodedText Encoded (non-ASCII characters) representation of the Text (58) field in the encoded format specified via the MessageEncoding (347) field. FIX.4.2
Block StandardTrailer Y FIX.4.0