PartyID (FIX tag 448)

StringFIX 4.4

PartyID (tag 448) is a String field defined in FIX 4.4. It appears in 44 message types, always optionally.

At a glance

Tag: 448
Name: PartyID
Datatype: String
Dialects: FIX 4.4
Messages: 44

What the specification says

Party identifier/code. See PartyIDSource (447) and PartyRole (452). See "Appendix 6-G – Use of <Parties> Component Block"

Descriptions are quoted from the FIX Orchestra sources under the Apache 2.0 licence.

A real message using tag 448

NewOrderSingle · FIX 4.4

Tag	Field	Wire value	Meaning
8	BeginString	FIX.4.4
9	BodyLength	141
35	MsgType	D	Order – Single
49	SenderCompID	BOARTEAM
56	TargetCompID	COUNTERPARTY
34	MsgSeqNum	2
52	SendingTime	20240101-12:00:00.000
11	ClOrdID	ORD-10042
453	NoPartyIDs2 entries	2	repeating group
448	PartyID	EXAMPLE
448	PartyID	EXAMPLE
54	Side	1	Buy
60	TransactTime	20240101-12:00:00.000
40	OrdType	1	Market
10	CheckSum	211

Edit and decode it yourself

Shown with | separators for readability. On the wire FIX uses SOH (0x01), an invisible control byte — and because BodyLength and CheckSum are computed over the actual bytes, the two forms have different checksums. Both are valid and both decode here.

Open in the full decoder →

Generated from the FIX 4.4 dictionary and verified at build time: it parses and validates with no issues. Open the decoder to try your own message.

Where tag 448 appears

Requiredness is a property of the message, not of the field: the same tag can be optional in one message and conditionally required in another.

Message	MsgType	Requiredness	Where in the message
AllocationInstruction	J	Conditional	inside the Parties component
AllocationInstructionAck	P	Conditional	inside the Parties component
AllocationReport	AS	Conditional	inside the Parties component
AllocationReportAck	AT	Conditional	inside the Parties component
AssignmentReport	AW	Conditional	inside the Parties component
CollateralAssignment	AY	Conditional	inside the Parties component
CollateralInquiry	BB	Conditional	inside the Parties component
CollateralInquiryAck	BG	Conditional	inside the Parties component
CollateralReport	BA	Conditional	inside the Parties component
CollateralRequest	AX	Conditional	inside the Parties component
CollateralResponse	AZ	Conditional	inside the Parties component
Confirmation	AK	Conditional	inside the Parties component
CrossOrderCancelReplaceRequest	t	Conditional	inside SideCrossOrdModGrp › Parties
CrossOrderCancelRequest	u	Conditional	inside SideCrossOrdCxlGrp › Parties
ExecutionReport	8	Conditional	inside the Parties component
MassQuote	i	Conditional	inside the Parties component
MassQuoteAcknowledgement	b	Conditional	inside the Parties component
MultilegOrderCancelReplace	AC	Conditional	inside the Parties component
NewOrderCross	s	Conditional	inside SideCrossOrdModGrp › Parties
NewOrderList	E	Conditional	inside ListOrdGrp › Parties
NewOrderMultileg	AB	Conditional	inside the Parties component
NewOrderSingle	D	Conditional	inside the Parties component
OrderCancelReplaceRequest	G	Conditional	inside the Parties component
OrderCancelRequest	F	Conditional	inside the Parties component
OrderMassStatusRequest	AF	Conditional	inside the Parties component
OrderStatusRequest	H	Conditional	inside the Parties component
PositionMaintenanceReport	AM	Conditional	inside the Parties component
PositionMaintenanceRequest	AL	Conditional	inside the Parties component
PositionReport	AP	Conditional	inside the Parties component
Quote	S	Conditional	inside the Parties component
QuoteCancel	Z	Conditional	inside the Parties component
QuoteRequest	R	Conditional	inside QuotReqGrp › Parties
QuoteRequestReject	AG	Conditional	inside QuotReqRjctGrp › Parties
QuoteResponse	AJ	Conditional	inside the Parties component
QuoteStatusReport	AI	Conditional	inside the Parties component
QuoteStatusRequest	a	Conditional	inside the Parties component
RegistrationInstructions	o	Conditional	inside the Parties component
RegistrationInstructionsResponse	p	Conditional	inside the Parties component
RequestForPositions	AN	Conditional	inside the Parties component
RequestForPositionsAck	AO	Conditional	inside the Parties component
SettlementInstructionRequest	AV	Conditional	inside the Parties component
SettlementInstructions	T	Conditional	inside SettlInstGrp › Parties
TradeCaptureReport	AE	Conditional	inside TrdCapRptSideGrp › Parties
TradeCaptureReportRequest	AD	Conditional	inside the Parties component

Wire format

Free-form text. Any byte except the SOH separator is legal, so values are not trimmed or case-folded on the wire. @boarteam/fix keeps the value as a string; format rules are checked by validate(), which reports validate/invalid-value rather than throwing.

Read tag 448 in TypeScript

decode.tsts

import { createFixEngine } from "@boarteam/fix";import { dictionary } from "@boarteam/fix-dict-fix44";const fix = createFixEngine(dictionary);const { message, issues } = fix.parse(raw);const field = message.fields[448];field?.name;   // "PartyID"field?.raw;    // the verbatim wire stringfield?.value;  // coerced to a string

Decode this in your own code

The same engine that produced the decoded example above is an Apache-2.0 npm package with zero runtime dependencies. It runs in Node and in the browser, and parse() returns problems as data instead of throwing.

npm i @boarteam/fix @boarteam/fix-dict-fix44

Try the decoder Source on GitHub