FIX TAG 8
BeginString
StringAdded FIX.2.7
Definition
Identifies beginning of new message and protocol version. ALWAYS FIRST FIELD IN MESSAGE. (Always unencrypted) Valid values: FIXT.1.1
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Differences between the selected source snapshots, including wording and errata; not a migration guide.
FIX 4.4 FIX 5.0 SP2
Definition text changed
FIX 4.4
Identifies beginning of new message and protocol version. ALWAYS FIRST FIELD IN MESSAGE. (Always unencrypted)
FIX 5.0 SP2
Identifies beginning of new message and protocol version. ALWAYS FIRST FIELD IN MESSAGE. (Always unencrypted) Valid values: FIXT.1.1
No enumerated values are defined for this field in this source.
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 116
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=bMassQuoteAcknowledgementStandardHeader35=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=BNExecutionAcknowledgementStandardHeader35=BJTradingSessionListStandardHeader35=BITradingSessionListRequestStandardHeader35=BQSettlementObligationReportStandardHeader35=BRDerivativeSecurityListUpdateReportStandardHeader35=BSTradingSessionListUpdateReportStandardHeader35=BTMarketDefinitionRequestStandardHeader35=BUMarketDefinitionStandardHeader35=BVMarketDefinitionUpdateReportStandardHeader35=CBUserNotificationStandardHeader35=BZOrderMassActionReportStandardHeader35=CAOrderMassActionRequestStandardHeader35=BWApplicationMessageRequestStandardHeader35=BXApplicationMessageRequestAckStandardHeader35=BYApplicationMessageReportStandardHeader35=CCStreamAssignmentRequestStandardHeader35=CDStreamAssignmentReportStandardHeader35=CEStreamAssignmentReportACKStandardHeader