| Tag | Field Name | Req'd | Comments | 
                           
                              | <MessageHeader> | Y | MsgType <35> = AQ | 
                           
                              | 568 | TradeRequestID | Y | Identifier for the trade request | 
                           
                              | 569 | TradeRequestType | Y |  | 
                           
                              | 263 | SubscriptionRequestType | N | Used to subscribe / unsubscribe for trade capture reports
                                 If the field is absent, the value 0 will be the default | 
                           
                              | 748 | TotNumTradeReports | N | Number of trade reports returned | 
                           
                              | 749 | TradeRequestResult | Y | Result of Trade Request | 
                           
                              | 750 | TradeRequestStatus | Y | Status of Trade Request | 
                           
                              | Component Block - <Instrument> | Y | Insert here the set of  "Instrument" (symbology) fields defined in "Common Components of Application Messages" | 
                           
                              | Component Block - <UndInstrmtGrp> | N |  | 
                           
                              | Component Block - <InstrmtLegGrp> | N | Number of legs NoLegs > 0 identifies a Multi-leg Execution | 
                           
                              | 442 | MultiLegReportingType | N | Specify type of multileg reporting to be returned. | 
                           
                              | 725 | ResponseTransportType | N | Ability to specify whether the response to the request should be delivered inband or via pre-arranged out-of-band transport. | 
                           
                              | 726 | ResponseDestination | N | URI destination name.  Used if ResponseTransportType is out-of-band. | 
                           
                              | 58 | Text | N | May be used by the executing market to record any execution  Details that are particular to that market | 
                           
                              | 354 | EncodedTextLen | N | Must be set if EncodedText field is specified and must immediately precede it. | 
                           
                              | 355 | EncodedText | N | Encoded (non-ASCII characters) representation of the Text field in the encoded format specified via the MessageEncoding field. | 
                           
                              | 1011 | MessageEventSource | N | Used to identify the event or source which gave rise to a message | 
                           
                              | 1003 | TradeID | N |  | 
                           
                              | 1040 | SecondaryTradeID | N |  | 
                           
                              | 1041 | FirmTradeID | N |  | 
                           
                              | 1042 | SecondaryFirmTradeID | N |  | 
                           
                              | <MessageTrailer> | Y |   |