Defines message type. Always third field in message. Always unencrypted.
The value is case-sensitive.
"U" as the first character of the value (e.g. U1, U2) indicates that the message format is privately defined between the sender and receiver.
| Code | Meaning |
|---|---|
| 0 | Heartbeat |
| 1 | TestRequest |
| 2 | ResendRequest |
| 3 | Reject |
| 4 | SequenceReset |
| 5 | Logout |
| 6 | IOI |
| 7 | Advertisement |
| 8 | ExecutionReport |
| 9 | OrderCancelReject |
| A | Logon |
| B | News |
| C | |
| D | NewOrderSingle |
| E | NewOrderList |
| F | OrderCancelRequest |
| G | OrderCancelReplaceRequest |
| H | OrderStatusRequest |
| J | AllocationInstruction |
| K | ListCancelRequest |
| L | ListExecute |
| M | ListStatusRequest |
| N | ListStatus |
| P | AllocationInstructionAck |
| Q | DontKnowTrade |
| R | QuoteRequest |
| S | Quote |
| T | SettlementInstructions |
| V | MarketDataRequest |
| W | MarketDataSnapshotFullRefresh |
| X | MarketDataIncrementalRefresh |
| Y | MarketDataRequestReject |
| Z | QuoteCancel |
| a | QuoteStatusRequest |
| b | MassQuoteAck |
| c | SecurityDefinitionRequest |
| d | SecurityDefinition |
| e | SecurityStatusRequest |
| f | SecurityStatus |
| g | TradingSessionStatusRequest |
| h | TradingSessionStatus |
| i | MassQuote |
| j | BusinessMessageReject |
| k | BidRequest |
| l | BidResponse |
| m | ListStrikePrice |
| n | XMLnonFIX |
| o | RegistrationInstructions |
| p | RegistrationInstructionsResponse |
| q | OrderMassCancelRequest |
| r | OrderMassCancelReport |
| s | NewOrderCross |
| t | CrossOrderCancelReplaceRequest |
| u | CrossOrderCancelRequest |
| v | SecurityTypeRequest |
| w | SecurityTypes |
| x | SecurityListRequest |
| y | SecurityList |
| z | DerivativeSecurityListRequest |
| AA | DerivativeSecurityList |
| AB | NewOrderMultileg |
| AC | MultilegOrderCancelReplace |
| AD | TradeCaptureReportRequest |
| AE | TradeCaptureReport |
| AF | OrderMassStatusRequest |
| AG | QuoteRequestReject |
| AH | RFQRequest |
| AI | QuoteStatusReport |
| AJ | QuoteResponse |
| AK | Confirmation |
| AL | PositionMaintenanceRequest |
| AM | PositionMaintenanceReport |
| AN | RequestForPositions |
| AO | RequestForPositionsAck |
| AP | PositionReport |
| AQ | TradeCaptureReportRequestAck |
| AR | TradeCaptureReportAck |
| AS | AllocationReport |
| AT | AllocationReportAck |
| AU | ConfirmationAck |
| AV | SettlementInstructionRequest |
| AW | AssignmentReport |
| AX | CollateralRequest |
| AY | CollateralAssignment |
| AZ | CollateralResponse |
| BA | CollateralReport |
| BB | CollateralInquiry |
| BC | NetworkCounterpartySystemStatusRequest |
| BD | NetworkCounterpartySystemStatusResponse |
| BE | UserRequest |
| BF | UserResponse |
| BG | CollateralInquiryAck |
| BH | ConfirmationRequest |
| BO | ContraryIntentionReport |
| BP | SecurityDefinitionUpdateReport |
| BK | SecurityListUpdateReport |
| BL | AdjustedPositionReport |
| BM | AllocationInstructionAlert |
| BN | ExecutionAck |
| BJ | TradingSessionList |
| BI | TradingSessionListRequest |
| BQ | SettlementObligationReport |
| BR | DerivativeSecurityListUpdateReport |
| BS | TradingSessionListUpdateReport |
| BT | MarketDefinitionRequest |
| BU | MarketDefinition |
| BV | MarketDefinitionUpdateReport |
| BW | ApplicationMessageRequest |
| BX | ApplicationMessageRequestAck |
| BY | ApplicationMessageReport |
| BZ | OrderMassActionReport |
| CA | OrderMassActionRequest |
| CB | UserNotification |
| CC | StreamAssignmentRequest |
| CD | StreamAssignmentReport |
| CE | StreamAssignmentReportACK |
| CF | PartyDetailsListRequest |
| CG | PartyDetailsListReport |
| CH | MarginRequirementInquiry |
| CI | MarginRequirementInquiryAck |
| CJ | MarginRequirementReport |
| CK | PartyDetailsListUpdateReport |
| CL | PartyRiskLimitsRequest |
| CM | PartyRiskLimitsReport |
| CN | SecurityMassStatusRequest |
| CO | SecurityMassStatus |
| CQ | AccountSummaryReport |
| CR | PartyRiskLimitsUpdateReport |
| CS | PartyRiskLimitsDefinitionRequest |
| CT | PartyRiskLimitsDefinitionRequestAck |
| CU | PartyEntitlementsRequest |
| CV | PartyEntitlementsReport |
| CW | QuoteAck |
| CX | PartyDetailsDefinitionRequest |
| CY | PartyDetailsDefinitionRequestAck |
| CZ | PartyEntitlementsUpdateReport |
| DA | PartyEntitlementsDefinitionRequest |
| DB | PartyEntitlementsDefinitionRequestAck |
| DC | TradeMatchReport |
| DD | TradeMatchReportAck |
| DE | PartyRiskLimitsReportAck |
| DF | PartyRiskLimitCheckRequest |
| DG | PartyRiskLimitCheckRequestAck |
| DH | PartyActionRequest |
| DI | PartyActionReport |
| DJ | MassOrder |
| DK | MassOrderAck |
| DL | PositionTransferInstruction |
| DM | PositionTransferInstructionAck |
| DN | PositionTransferReport |
| DO | MarketDataStatisticsRequest |
| DP | MarketDataStatisticsReport |
| DQ | CollateralReportAck |
| DR | MarketDataReport |
| DS | CrossRequest |
| DT | CrossRequestAck |
| DU | AllocationInstructionAlertRequest |
| DV | AllocationInstructionAlertRequestAck |
| DW | TradeAggregationRequest |
| DX | TradeAggregationReport |
| EA | PayManagementReport |
| EB | PayManagementReportAck |
| DY | PayManagementRequest |
| DZ | PayManagementRequestAck |
| EC | SettlementStatusRequest |
| ED | SettlementStatusRequestAck |
| EE | SettlementStatusReport |
| EF | SettlementStatusReportAck |