FIX TAG 8
BeginString
StringAdded FIX.2.7
Definition
Identifies beginning of new message and protocol version. ALWAYS FIRST FIELD IN MESSAGE. (Always unencrypted)
Compare versions
Differences between the selected source snapshots, including wording and errata; not a migration guide.
FIX 4.4 FIX 4.2
No differences in name, type, definition text, deprecation, or enumerated values.
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.
Used in messages 46
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=DOrderSingleStandardHeader35=EOrderListStandardHeader35=FOrderCancelRequestStandardHeader35=GOrderCancelReplaceRequestStandardHeader35=HOrderStatusRequestStandardHeader35=JAllocationStandardHeader35=KListCancelRequestStandardHeader35=LListExecuteStandardHeader35=MListStatusRequestStandardHeader35=NListStatusStandardHeader35=PAllocationAckStandardHeader35=QDontKnowTradeStandardHeader35=RQuoteRequestStandardHeader35=SQuoteStandardHeader35=TSettlementInstructionsStandardHeader35=VMarketDataRequestStandardHeader35=WMarketDataSnapshotFullRefreshStandardHeader35=XMarketDataIncrementalRefreshStandardHeader35=YMarketDataRequestRejectStandardHeader35=ZQuoteCancelStandardHeader35=aQuoteStatusRequestStandardHeader35=bQuoteAcknowledgementStandardHeader35=cSecurityDefinitionRequestStandardHeader35=dSecurityDefinitionStandardHeader35=eSecurityStatusRequestStandardHeader35=fSecurityStatusStandardHeader35=gTradingSessionStatusRequestStandardHeader35=hTradingSessionStatusStandardHeader35=iMassQuoteStandardHeader35=jBusinessMessageRejectStandardHeader35=kBidRequestStandardHeader35=lBidResponseStandardHeader35=mListStrikePriceStandardHeader