Tag 8
BeginString
Abbreviation:
BeginStringDescription
Identifies beginning of new message and protocol version. ALWAYS FIRST FIELD IN MESSAGE. (Always unencrypted)
Valid values:
FIXT.1.1
Wire Format & Usage Example
Single field (key=value)
8=EXAMPLE
In a FIX message (ExecutionReport)
8=FIX.4.4 | 9=... | 35=8 | 49=SENDER | 56=TARGET | 34=1 | 52=20240101-09:30:00.000 | … | 8=EXAMPLE | … | 10=...
Fields are delimited by SOH (ASCII 0x01), shown here as " | ". The highlighted field 8=EXAMPLE is this field's position in the message.
Used in Messages
101BLAdjustedPositionReport7AdvertisementJAllocationInstructionPAllocationInstructionAckBMAllocationInstructionAlertASAllocationReportATAllocationReportAckAWAssignmentReportkBidRequestlBidResponsejBusinessMessageRejectAYCollateralAssignmentBBCollateralInquiryBGCollateralInquiryAckBACollateralReportAXCollateralRequestAZCollateralResponseAKConfirmationAUConfirmationAckBHConfirmationRequestBOContraryIntentionReporttCrossOrderCancelReplaceRequestuCrossOrderCancelRequestAADerivativeSecurityListzDerivativeSecurityListRequestQDontKnowTradeCEmailBNExecutionAcknowledgement8ExecutionReport0Heartbeat6IOIKListCancelRequestLListExecuteNListStatusMListStatusRequestmListStrikePriceALogon5LogoutXMarketDataIncrementalRefreshVMarketDataRequestYMarketDataRequestRejectWMarketDataSnapshotFullRefreshiMassQuotebMassQuoteAcknowledgementACMultilegOrderCancelReplaceBCNetworkCounterpartySystemStatusRequestBDNetworkCounterpartySystemStatusResponsesNewOrderCrossENewOrderListABNewOrderMultilegDNewOrderSingleBNews9OrderCancelRejectGOrderCancelReplaceRequestFOrderCancelRequestrOrderMassCancelReportqOrderMassCancelRequestAFOrderMassStatusRequestHOrderStatusRequestAMPositionMaintenanceReportALPositionMaintenanceRequestAPPositionReportSQuoteZQuoteCancelRQuoteRequestAGQuoteRequestRejectAJQuoteResponseAIQuoteStatusReportaQuoteStatusRequestAHRFQRequestoRegistrationInstructionspRegistrationInstructionsResponse3RejectANRequestForPositionsAORequestForPositionsAck2ResendRequestdSecurityDefinitioncSecurityDefinitionRequestBPSecurityDefinitionUpdateReportySecurityListxSecurityListRequestBKSecurityListUpdateReportfSecurityStatuseSecurityStatusRequestvSecurityTypeRequestwSecurityTypes4SequenceResetAVSettlementInstructionRequestTSettlementInstructions1TestRequestAETradeCaptureReportARTradeCaptureReportAckADTradeCaptureReportRequestAQTradeCaptureReportRequestAckBJTradingSessionListBITradingSessionListRequesthTradingSessionStatusgTradingSessionStatusRequestBEUserRequestBFUserResponsenXMLnonFIX