| Tag | 
                              Field Name | 
                              Req'd | 
                              Comments | 
                           
                           
                              | <MessageHeader> | 
                              Y | 
                              MsgType <35> = BP
                               | 
                           
                           
                              | 964 | 
                              SecurityReportID | 
                              N | 
                              Identifier for the Security Definition Update message in a bulk transfer environment (No Request/Response) | 
                           
                           
                              | 320 | 
                              SecurityReqID | 
                              N | 
                               | 
                           
                           
                              | 322 | 
                              SecurityResponseID | 
                              N | 
                              Identifier for the Security Definition message. | 
                           
                           
                              | 323 | 
                              SecurityResponseType | 
                              N | 
                              Response to the Security Definition Request. | 
                           
                           
                              | 715 | 
                              ClearingBusinessDate | 
                              N | 
                               | 
                           
                           
                              | 980 | 
                              SecurityUpdateAction | 
                              N | 
                              Specifies New (0), Cancel (1) or Replace (2) | 
                           
                           
                              | 292 | 
                              CorporateAction | 
                              N | 
                              Identifies the type of Corporate Action | 
                           
                           
                              | 
                                    Component Block - <Instrument> | 
                              N | 
                               | 
                           
                           
                              | 
                                    Component Block - <UnderlyingInstrument> | 
                              N | 
                               | 
                           
                           
                              | 15 | 
                              Currency | 
                              N | 
                               | 
                           
                           
                              | 336 | 
                              TradingSessionID | 
                              N | 
                               | 
                           
                           
                              | 625 | 
                              TradingSessionSubID | 
                              N | 
                               | 
                           
                           
                              | 58 | 
                              Text | 
                              N | 
                              Comment, instructions, or other identifying information. | 
                           
                           
                              | 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. | 
                           
                           
                              | 
                                    Component Block - <InstrmtLegGrp> | 
                              N | 
                               | 
                           
                           
                              | 827 | 
                              ExpirationCycle | 
                              N | 
                               | 
                           
                           
                              | 561 | 
                              RoundLot | 
                              N | 
                               | 
                           
                           
                              | 562 | 
                              MinTradeVol | 
                              N | 
                               | 
                           
                           
                              | <MessageTrailer> | 
                              Y | 
                                 |