--- title: Reject <3> message – FIX 5.0 SP2 – FIX Dictionary – Onix Solutions description: Reject <3> message – FIX 5.0 SP2 – FIX Dictionary – Onix Solutions --- ![Dictionary icon](https://www.onixs.biz/hubfs/SIC_website_2020/images/interface/img-icon-book.svg) # Reject <3> message – FIX 5.0 SP2 – FIX Dictionary | Messages by MsgType \| Messages by Name \| Fields by Tag \| Fields by Name \| FIX 5.0 SP2 \| Home FIX 5.0 SP2 : Reject <3> message Structure \| Sample Messages \| Related Messages Description The Reject message should be issued when a message is received but cannot be properly processed due to a session-level rule violation. An example of when a reject may be appropriate would be the receipt of a message with invalid basic data (e.g. MsgType <35>=&) which successfully passes de-encryption, CheckSum <10> and BodyLength <9> checks. As a rule, messages should be forwarded to the trading application for business level rejections whenever possible. Rejected messages should be logged and the incoming sequence number incremented. Note: The receiving application should disregard any message that is garbled, cannot be parsed or fails a data integrity check. Processing of the next valid FIX message will cause detection of a sequence gap and a Resend Request <2> will be generated. Logic should be included in the FIX engine to recognize the possible infinite resend loop, which may be encountered in this situation. Generation and receipt of a Reject message indicates a serious error that may be the result of faulty logic in either the sending or receiving application. If the sending application chooses to retransmit the rejected message, it should be assigned a new sequence number and sent with PossResend <97>=Y. Whenever possible, it is strongly recommended that the cause of the failure be described in the Text <58> field (e.g. INVALID DATA - FIELD 35). If an application-level message received fulfills session-level rules, it should then be processed at a business message-level. If this processing detects a rule violation, a business-level reject should be issued. Many business-level messages have specific "reject" messages, which should be used. All others can be rejected at a business-level via the Business Message Reject message. Note that in the event a business message is received, fulfills session-level rules, however, the message cannot be communicated to the business-level processing system, a Business Message Reject with BusinessRejectReason <380> = "Application not available at this time" should be issued. Scenarios for session-level Reject <3>: SessionRejectReason 0 Invalid tag number 1 Required tag missing 2 Tag not defined for this message type 3 Undefined Tag 4 Tag specified without a value 5 Value is incorrect (out of range) for this tag 6 Incorrect data format for value 7 Decryption problem 8 Signature <89> problem 9 CompID problem 10 SendingTime <52> accuracy problem 11 Invalid MsgType <35> 12 XML Validation error 13 Tag appears more than once 14 Tag specified out of required order 15 Repeating group fields out of order 16 Incorrect NumInGroup count for repeating group 17 Non "data" value includes field delimiter (SOH character) 99 Other (Note other session-level rule violations may exist in which case SessionRejectReason <373> of Other may be used and further information may be in Text <58> field.) Structure Tag Field Name Req'd Comments Component Block - Y MsgType <35> = 3 45 RefSeqNum Y MsgSeqNum <34> of rejected message 371 RefTagID N The tag number of the FIX field being referenced. 372 RefMsgType N The MsgType of the FIX message being referenced. 1130 RefApplVerID N Recommended when rejecting an application message that does not explicitly provide ApplVerID <1128> on the message being rejected. In this case the value from the DefaultApplVerID <1137> or the default value specified in the NoMsgTypes <384> repeating group on the logon message should be provided. 1406 RefApplExtID N Recommended when rejecting an application message that does not explicitly provide ApplExtID <1156> on the rejected message. In this case the value from the DefaultApplExtID <1407> or the default value specified in the NoMsgTypes <384> repeating group on the logon message should be provided. 1131 RefCstmApplVerID N Recommended when rejecting an application message that does not explicitly provide CstmApplVerID <1129> on the message being rejected. In this case the value from the DefaultCstmApplVerID <1408> or the default value specified in the NoMsgTypes <384> repeating group on the logon message should be provided. 373 SessionRejectReason N Code to identify reason for a session-level Reject message. 58 Text N Where possible, message to explain reason for rejection 354 EncodedTextLen N Must be set if EncodedText <355> field is specified and must immediately precede it. 355 EncodedText N Encoded (non-ASCII characters) representation of the Text <58> field in the encoded format specified via the MessageEncoding <347> field. Component Block - Y Sample Messages The ^ character is used to represent SOH character. 8=FIXT.1.1^9=141^35=3^49=SellSide^56=BuySide^34=4^52=20190606-10:22:07.617^1128=9^45=5^58=Invalid Resend Request: BeginSeqNo (5) is greater than expected (3)^10=239^ Related Messages OrderCancelReject <9> QuoteRequestReject OrderCancelRequest OrderCancelReplaceRequest MarketDataRequestReject SecurityDefinition BusinessMessageReject OrderMassCancelRequest OrderMassCancelReport | | --- | | ![](https://www.onixs.biz/fix-dictionary/img/spacer.gif?height=5&name=spacer.gif) | - Follow OnixS - [Follow us on Twitter ](https://twitter.com/onixsbiz) - [Connect with us on LinkedIn ](https://www.linkedin.com/company/onix-solutions/) We track how people interact with our online web content and resources, and some of that tracking involves storing cookies on your device. By continuing to use our site you accept that you agree to this. 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