FIX TAG 8
BeginString
StringAdded FIX.2.7
Definition
Identifies beginning of new message and session protocol version by means of a session profile identifier (see FIX Session Layer for details). ALWAYS FIRST FIELD IN MESSAGE. (Always unencrypted).
Compare versions
Differences between the selected source snapshots, including wording and errata; not a migration guide.
FIX 5.0 SP2 FIX Latest · EP309
Definition text changed
FIX 5.0 SP2
Identifies beginning of new message and protocol version. ALWAYS FIRST FIELD IN MESSAGE. (Always unencrypted) Valid values: FIXT.1.1
FIX Latest · EP309
Identifies beginning of new message and session protocol version by means of a session profile identifier (see FIX Session Layer for details). ALWAYS FIRST FIELD IN MESSAGE. (Always unencrypted).
Values only in FIX Latest · EP309 3
FIX.4.2Session profile FIX.4.2FIX.4.4Session profile FIX4FIXT.1.1Session profile FIXT or LFXITAdditional source detail
The choice between FIXT and LFIXT is subject to counterparty agreement.
Values 3
About the String data type
Alpha-numeric free format strings, can include any character or punctuation except the delimiter. All String fields are case sensitive (i.e. morstatt != Morstatt).
Used in messages 181
Includes nested components and repeating groups. Open a location to see its surrounding requirements.
35=0HeartbeatStandardHeader35=1TestRequestStandardHeader35=2ResendRequestStandardHeader35=3RejectStandardHeader35=4SequenceResetStandardHeader35=5LogoutStandardHeader35=6IOIStandardHeader35=7AdvertisementStandardHeader35=8ExecutionReportStandardHeader35=9OrderCancelRejectStandardHeader35=ALogonStandardHeader35=BNewsStandardHeader35=CEmailStandardHeader35=DNewOrderSingleStandardHeader35=ENewOrderListStandardHeader35=FOrderCancelRequestStandardHeader35=GOrderCancelReplaceRequestStandardHeader35=HOrderStatusRequestStandardHeader35=JAllocationInstructionStandardHeader35=KListCancelRequestStandardHeader35=LListExecuteStandardHeader35=MListStatusRequestStandardHeader35=NListStatusStandardHeader35=PAllocationInstructionAckStandardHeader35=QDontKnowTradeStandardHeader35=RQuoteRequestStandardHeader35=SQuoteStandardHeader35=TSettlementInstructionsStandardHeader35=VMarketDataRequestStandardHeader35=WMarketDataSnapshotFullRefreshStandardHeader35=XMarketDataIncrementalRefreshStandardHeader35=YMarketDataRequestRejectStandardHeader35=ZQuoteCancelStandardHeader35=aQuoteStatusRequestStandardHeader35=bMassQuoteAckStandardHeader35=cSecurityDefinitionRequestStandardHeader35=dSecurityDefinitionStandardHeader35=eSecurityStatusRequestStandardHeader35=fSecurityStatusStandardHeader35=gTradingSessionStatusRequestStandardHeader35=hTradingSessionStatusStandardHeader35=iMassQuoteStandardHeader35=jBusinessMessageRejectStandardHeader35=kBidRequestStandardHeader35=lBidResponseStandardHeader35=mListStrikePriceStandardHeader35=nXMLnonFIXStandardHeader35=oRegistrationInstructionsStandardHeader35=pRegistrationInstructionsResponseStandardHeader35=qOrderMassCancelRequestStandardHeader35=rOrderMassCancelReportStandardHeader35=sNewOrderCrossStandardHeader35=tCrossOrderCancelReplaceRequestStandardHeader35=uCrossOrderCancelRequestStandardHeader35=vSecurityTypeRequestStandardHeader35=wSecurityTypesStandardHeader35=xSecurityListRequestStandardHeader35=ySecurityListStandardHeader35=zDerivativeSecurityListRequestStandardHeader35=AADerivativeSecurityListStandardHeader35=ABNewOrderMultilegStandardHeader35=ACMultilegOrderCancelReplaceStandardHeader35=ADTradeCaptureReportRequestStandardHeader35=AETradeCaptureReportStandardHeader35=AFOrderMassStatusRequestStandardHeader35=AGQuoteRequestRejectStandardHeader35=AHRFQRequestStandardHeader35=AIQuoteStatusReportStandardHeader35=AJQuoteResponseStandardHeader35=AKConfirmationStandardHeader35=ALPositionMaintenanceRequestStandardHeader35=AMPositionMaintenanceReportStandardHeader35=ANRequestForPositionsStandardHeader35=AORequestForPositionsAckStandardHeader35=APPositionReportStandardHeader35=AQTradeCaptureReportRequestAckStandardHeader35=ARTradeCaptureReportAckStandardHeader35=ASAllocationReportStandardHeader35=ATAllocationReportAckStandardHeader35=AUConfirmationAckStandardHeader35=AVSettlementInstructionRequestStandardHeader35=AWAssignmentReportStandardHeader35=AXCollateralRequestStandardHeader35=AYCollateralAssignmentStandardHeader35=AZCollateralResponseStandardHeader35=BACollateralReportStandardHeader35=BBCollateralInquiryStandardHeader35=BCNetworkCounterpartySystemStatusRequestStandardHeader35=BDNetworkCounterpartySystemStatusResponseStandardHeader35=BEUserRequestStandardHeader35=BFUserResponseStandardHeader35=BGCollateralInquiryAckStandardHeader35=BHConfirmationRequestStandardHeader35=BOContraryIntentionReportStandardHeader35=BPSecurityDefinitionUpdateReportStandardHeader35=BKSecurityListUpdateReportStandardHeader35=BLAdjustedPositionReportStandardHeader35=BMAllocationInstructionAlertStandardHeader35=BNExecutionAckStandardHeader35=BJTradingSessionListStandardHeader35=BITradingSessionListRequestStandardHeader35=BQSettlementObligationReportStandardHeader35=BRDerivativeSecurityListUpdateReportStandardHeader35=BSTradingSessionListUpdateReportStandardHeader35=BTMarketDefinitionRequestStandardHeader35=BUMarketDefinitionStandardHeader35=BVMarketDefinitionUpdateReportStandardHeader35=BWApplicationMessageRequestStandardHeader35=BXApplicationMessageRequestAckStandardHeader35=BYApplicationMessageReportStandardHeader35=BZOrderMassActionReportStandardHeader35=CAOrderMassActionRequestStandardHeader35=CBUserNotificationStandardHeader35=CCStreamAssignmentRequestStandardHeader35=CDStreamAssignmentReportStandardHeader35=CEStreamAssignmentReportACKStandardHeader35=CFPartyDetailsListRequestStandardHeader35=CGPartyDetailsListReportStandardHeader35=CHMarginRequirementInquiryStandardHeader35=CIMarginRequirementInquiryAckStandardHeader35=CJMarginRequirementReportStandardHeader35=CKPartyDetailsListUpdateReportStandardHeader35=CLPartyRiskLimitsRequestStandardHeader35=CMPartyRiskLimitsReportStandardHeader35=CNSecurityMassStatusRequestStandardHeader35=COSecurityMassStatusStandardHeader35=CQAccountSummaryReportStandardHeader35=CRPartyRiskLimitsUpdateReportStandardHeader35=CSPartyRiskLimitsDefinitionRequestStandardHeader35=CTPartyRiskLimitsDefinitionRequestAckStandardHeader35=CUPartyEntitlementsRequestStandardHeader35=CVPartyEntitlementsReportStandardHeader35=CWQuoteAckStandardHeader35=CXPartyDetailsDefinitionRequestStandardHeader35=CYPartyDetailsDefinitionRequestAckStandardHeader35=CZPartyEntitlementsUpdateReportStandardHeader35=DAPartyEntitlementsDefinitionRequestStandardHeader35=DBPartyEntitlementsDefinitionRequestAckStandardHeader35=DCTradeMatchReportStandardHeader35=DDTradeMatchReportAckStandardHeader35=DEPartyRiskLimitsReportAckStandardHeader35=DFPartyRiskLimitCheckRequestStandardHeader35=DGPartyRiskLimitCheckRequestAckStandardHeader35=DHPartyActionRequestStandardHeader35=DIPartyActionReportStandardHeader35=DJMassOrderStandardHeader35=DKMassOrderAckStandardHeader35=DLPositionTransferInstructionStandardHeader35=DMPositionTransferInstructionAckStandardHeader35=DNPositionTransferReportStandardHeader35=DOMarketDataStatisticsRequestStandardHeader35=DPMarketDataStatisticsReportStandardHeader35=DQCollateralReportAckStandardHeader35=DRMarketDataReportStandardHeader35=DSCrossRequestStandardHeader35=DTCrossRequestAckStandardHeader35=DUAllocationInstructionAlertRequestStandardHeader35=DVAllocationInstructionAlertRequestAckStandardHeader35=DWTradeAggregationRequestStandardHeader35=DXTradeAggregationReportStandardHeader35=EAPayManagementReportStandardHeader35=EBPayManagementReportAckStandardHeader35=DYPayManagementRequestStandardHeader35=DZPayManagementRequestAckStandardHeader35=ECSettlementStatusRequestStandardHeader35=EDSettlementStatusRequestAckStandardHeader35=EESettlementStatusReportStandardHeader35=EFSettlementStatusReportAckStandardHeader35=EGSecurityRiskMetricsReportStandardHeader35=EHAlgoCertificateRequestStandardHeader35=EIAlgoCertificateRequestAckStandardHeader35=EJAlgoCertificateReportStandardHeader35=EKAlgoCertificateReportAckStandardHeader35=ELTestSuiteDefinitionRequestStandardHeader35=EMTestSuiteDefinitionRequestAckStandardHeader35=ENTestActionRequestStandardHeader35=EOTestActionRequestAckStandardHeader35=EPTestActionReportStandardHeader35=EQMarketDataAckStandardHeader35=ERSecurityStatusAckStandardHeader35=ESTradingSessionStatusAckStandardHeader