QuoteRejectReason (FIX tag 300)

intFIX 4.4FIX 4.2

QuoteRejectReason (tag 300) is an int field defined in FIX 4.4 and FIX 4.2. It appears in 1 message type, always optionally. It is an enumerated field with 10 defined values.

At a glance

Tag: 300
Name: QuoteRejectReason
Datatype: int
Dialects: FIX 4.4 and FIX 4.2
Messages: 1
Valid values: 10

What the specification says

FIX 4.4

Reason Quote was rejected

FIX 4.2

Reason Quote was rejected:

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

A real message using tag 300

MassQuoteAcknowledgement · FIX 4.4

Tag	Field	Wire value	Meaning
8	BeginString	FIX.4.4
9	BodyLength	75
35	MsgType	b	Mass Quote Acknowledgement
49	SenderCompID	BOARTEAM
56	TargetCompID	COUNTERPARTY
34	MsgSeqNum	2
52	SendingTime	20240101-12:00:00.000
297	QuoteStatus	0	Accepted
300	QuoteRejectReason	1	Unknown symbol (Security)
10	CheckSum	245

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
1	Unknown symbol (Security)	UNKNOWN_SYMBOL / UnknownSymbol	FIX 4.4, FIX 4.2
2	Exchange (Security) closed	EXCHANGE / Exchange	FIX 4.4, FIX 4.2
3	Quote Request exceeds limit	QUOTE_REQUEST_EXCEEDS_LIMIT / QuoteRequestExceedsLimit	FIX 4.4, FIX 4.2
4	Too late to enter	TOO_LATE_TO_ENTER / TooLateToEnter	FIX 4.4, FIX 4.2
5	Unknown Quote	UNKNOWN_QUOTE / UnknownQuote	FIX 4.4, FIX 4.2
6	Duplicate Quote	DUPLICATE_QUOTE / DuplicateQuote	FIX 4.4, FIX 4.2
7	Invalid bid/ask spread	INVALID_BID_ASK_SPREAD / InvalidBid	FIX 4.4, FIX 4.2
8	Invalid price	INVALID_PRICE / InvalidPrice	FIX 4.4, FIX 4.2
9	Not authorized to quote security	NOT_AUTHORIZED_TO_QUOTE_SECURITY / NotAuthorizedToQuoteSecurity	FIX 4.4, FIX 4.2
99	Other	OTHER	FIX 4.4

Where tag 300 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
MassQuoteAcknowledgement	b	Optional	Optional	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 300 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 quoteRejectReason = message.fields[300]?.raw;// e.g. "1" — Unknown symbol (Security)// The dictionary also carries the labels:const label = fix.dictionary  .fieldByTag(300)  ?.enumValues?.find((e) => e.value === quoteRejectReason)  ?.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