CrossOrderCancelReplaceRequest (MsgType t)

applicationFIX 4.4

CrossOrderCancelReplaceRequest is the FIX message with MsgType t, defined in FIX 4.4. It is an application-level message: it carries a business event rather than managing the session. Its body has 49 top-level members once the standard header and trailer are counted.

MsgType is case-sensitive
t is CrossOrderCancelReplaceRequest, but T is a different message entirely — SettlementInstructions. Twenty-three FIX message types differ from another only by letter case.

A real CrossOrderCancelReplaceRequest

CrossOrderCancelReplaceRequest · FIX 4.4
TagFieldWire valueMeaning
8BeginStringFIX.4.4
9BodyLength153
35MsgTypetCross Order Cancel/Replace Request (a.k.a. Cross Order Modification Request)
49SenderCompIDBOARTEAM
56TargetCompIDCOUNTERPARTY
34MsgSeqNum2
52SendingTime20240101-12:00:00.000
548CrossIDEXAMPLE
551OrigCrossIDEXAMPLE
549CrossType1Cross Trade which is executed completely or not. Both sides are treated in the same manner. This is equivalent to an All or None.
550CrossPrioritization0None
552NoSides1 entry1repeating group
54Side1Buy
11ClOrdIDORD-10042
60TransactTime20240101-12:00:00.000
40OrdType1Market
10CheckSum026
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.

Message body

Components are listed by name and link to their own page rather than being expanded inline; repeating groups are expanded, including where they nest.

Handle CrossOrderCancelReplaceRequest 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);if (message.msgType === "t") {  message.name;            // "CrossOrderCancelReplaceRequest"  // fields are keyed by tag; repeating groups live on message.groups}// Problems come back as data, never as exceptions:issues;                    // FixIssue[]fix.validate(message);     // dictionary-level problems

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