NoRootPartyIDs (FIX tag 1116)

NumInGroupFIX 5.0 SP2group counter

NoRootPartyIDs (tag 1116) is a NumInGroup field defined in FIX 5.0 SP2. It appears in 8 message types, always optionally. Its datatype is NumInGroup, which makes it a repeating-group counter: its value is the number of entries that follow, not a quantity in its own right.

At a glance

Tag: 1116
Name: NoRootPartyIDs
Datatype: NumInGroup (int)
Dialects: FIX 5.0 SP2
Messages: 8

What the specification says

Number of RootPartyID (1117), RootPartyIDSource (1118), and RootPartyRole (1119) entries

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

A real message using tag 1116

QuoteRequest · FIX 5.0 SP2

Tag	Field	Wire value	Meaning
8	BeginString	FIXT.1.1
9	BodyLength	125
35	MsgType	R	QuoteRequest
49	SenderCompID	BOARTEAM
56	TargetCompID	COUNTERPARTY
34	MsgSeqNum	2
52	SendingTime	20240101-12:00:00.000
131	QuoteReqID	EXAMPLE
1116	NoRootPartyIDs2 entries	2	repeating group
1117	RootPartyID	EXAMPLE
1117	RootPartyID	EXAMPLE
146	NoRelatedSym1 entry	1	repeating group
55	Symbol	EUR/USD
10	CheckSum	070

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 5.0 SP2 dictionary and verified at build time: it parses and validates with no issues. Open the decoder to try your own message.

Where tag 1116 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
CrossOrderCancelReplaceRequest	t	Optional	inside the RootParties component
CrossOrderCancelRequest	u	Optional	inside the RootParties component
NewOrderCross	s	Optional	inside the RootParties component
NewOrderList	E	Optional	inside the RootParties component
QuoteRequest	R	Optional	inside the RootParties component
QuoteRequestReject	AG	Optional	inside the RootParties component
TradeCaptureReport	AE	Optional	inside the RootParties component
TradeCaptureReportAck	AR	Optional	inside the RootParties component

Wire format

The number of entries in the repeating group that follows. The next field on the wire is the group's delimiter tag. @boarteam/fix parses the value as a number and reports parse/invalid-int when it does not lex as one; the raw string is kept either way.

Read tag 1116 in TypeScript

decode.tsts

import { createFixEngine } from "@boarteam/fix";import { dictionary } from "@boarteam/fix-dict-fix50sp2";const fix = createFixEngine(dictionary);const { message, issues } = fix.parse(raw);// NoRootPartyIDs is a group counter, so the entries live on message.groups —// NOT on message.fields. message.fields[1116] is undefined.const entries = message.groups[1116] ?? [];for (const entry of entries) {  // entry.fields is keyed by tag; entry.groups holds nested groups}

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-fix50sp2

Try the decoder Source on GitHub