AllocMethod (FIX tag 1002)

intFIX 5.0 SP2

AllocMethod (tag 1002) is an int field defined in FIX 5.0 SP2. It appears in 5 message types, always optionally. It is an enumerated field with 3 defined values.

At a glance

Tag: 1002
Name: AllocMethod
Datatype: int
Dialects: FIX 5.0 SP2
Messages: 5
Valid values: 3

What the specification says

Specifies the method under which a trade quantity was allocated.

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

A real message using tag 1002

TradeCaptureReport · FIX 5.0 SP2

Tag	Field	Wire value	Meaning
8	BeginString	FIXT.1.1
9	BodyLength	138
35	MsgType	AE	TradeCaptureReport
49	SenderCompID	BOARTEAM
56	TargetCompID	COUNTERPARTY
34	MsgSeqNum	2
52	SendingTime	20240101-12:00:00.000
32	LastQty	1000000
31	LastPx	1.09210
552	NoSides1 entry	1	repeating group
54	Side	1	Buy
78	NoAllocs2 entries	2	repeating group
79	AllocAccount	EXAMPLE
1002	AllocMethod	1	Automatic
79	AllocAccount	EXAMPLE
1002	AllocMethod	1	Automatic
10	CheckSum	016

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.

Valid values

A value outside this list is not a parse error — the message still decodes — but validate() reports it as validate/value-not-in-enum.

Value	Meaning	Symbolic name
1	Automatic	AUTOMATIC
2	Guarantor	GUARANTOR
3	Manual	MANUAL

Where tag 1002 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	Optional	inside the AllocGrp component
AllocationInstructionAlert	BM	Optional	inside the AllocGrp component
AllocationReport	AS	Optional	inside the AllocGrp component
TradeCaptureReport	AE	Optional	inside TrdCapRptSideGrp › TrdAllocGrp
TradeCaptureReportAck	AR	Optional	inside TrdCapRptAckSideGrp › TrdAllocGrp

Wire format

A whole number, optionally signed. Leading zeros are legal on the wire and are preserved in the raw value. @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 1002 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);const allocMethod = message.fields[1002]?.raw;// e.g. "1" — Automatic// The dictionary also carries the labels:const label = fix.dictionary  .fieldByTag(1002)  ?.enumValues?.find((e) => e.value === allocMethod)  ?.description;

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