AllocRejCode (FIX tag 88)

intFIX 4.4FIX 4.2

AllocRejCode (tag 88) is an int field defined in FIX 4.4 and FIX 4.2. It appears in 3 message types, always optionally. It is an enumerated field with 14 defined values.

At a glance

Tag: 88
Name: AllocRejCode
Datatype: int
Dialects: FIX 4.4 and FIX 4.2
Messages: 3
Valid values: 14

What the specification says

FIX 4.4

Identifies reason for rejection

FIX 4.2

Identifies reason for rejection.

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

A real message using tag 88

AllocationInstructionAck · FIX 4.4

Tag	Field	Wire value	Meaning
8	BeginString	FIX.4.4
9	BodyLength	109
35	MsgType	P	Allocation Instruction Ack
49	SenderCompID	BOARTEAM
56	TargetCompID	COUNTERPARTY
34	MsgSeqNum	2
52	SendingTime	20240101-12:00:00.000
70	AllocID	EXAMPLE
60	TransactTime	20240101-12:00:00.000
87	AllocStatus	0	accepted (successfully processed)
88	AllocRejCode	0	unknown account(s)
10	CheckSum	027

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.

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	Dialects
0	unknown account(s)	UNKNOWN_ACCOUNT / UnknownAccount	FIX 4.4, FIX 4.2
1	incorrect quantity	INCORRECT_QUANTITY / IncorrectQuantity	FIX 4.4, FIX 4.2
2	incorrect average price	INCORRECT_AVERAGE_PRICE / IncorrectAveragegPrice	FIX 4.4, FIX 4.2
3	unknown executing broker mnemonic	UNKNOWN_EXECUTING_BROKER_MNEMONIC / UnknownExecutingBrokerMnemonic	FIX 4.4, FIX 4.2
4	commission difference	COMMISSION_DIFFERENCE / CommissionDifference	FIX 4.4, FIX 4.2
5	unknown OrderID (37)	UNKNOWN_ORDERID / UnknownOrderID	FIX 4.4, FIX 4.2
6	unknown ListID (66)	UNKNOWN_LISTID / UnknownListID	FIX 4.4, FIX 4.2
7	other (further in Note 58=)	OTHER / OtherSeeText	FIX 4.4, FIX 4.2
8	incorrect allocated quantity	INCORRECT_ALLOCATED_QUANTITY	FIX 4.4
9	calculation difference	CALCULATION_DIFFERENCE	FIX 4.4
10	unknown or stale ExecID (17)	UNKNOWN_OR_STALE_EXECID	FIX 4.4
11	mismatched data value (further in Note 58=)	MISMATCHED_DATA_VALUE	FIX 4.4
12	unknown ClOrdID (11)	UNKNOWN_CLORDID	FIX 4.4
13	warehouse request rejected	WAREHOUSE_REQUEST_REJECTED	FIX 4.4

Where tag 88 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	FIX 4.4	FIX 4.2	Where in the message
AllocationInstructionAck	P	Conditional	Optional	directly on the message body
AllocationReport	AS	Conditional	—	directly on the message body
AllocationReportAck	AT	Conditional	—	directly on the message body

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 88 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 allocRejCode = message.fields[88]?.raw;// e.g. "0" — unknown account(s)// The dictionary also carries the labels:const label = fix.dictionary  .fieldByTag(88)  ?.enumValues?.find((e) => e.value === allocRejCode)  ?.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-fix44

Try the decoder Source on GitHub