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title: Confirmation_Ack <AU> message – FIX 5.0 SP2 – FIX Dictionary – Onix Solutions
description: Confirmation_Ack <AU> message – FIX 5.0 SP2 – FIX Dictionary – Onix Solutions
---

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# Confirmation_Ack <AU> 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 : Confirmation_Ack <AU> message Structure \| Related Messages Description The Confirmation Ack (aka Affirmation) message is used to respond to a Confirmation message. Structure Tag Field Name Req'd Comments Component Block - <StandardHeader> Y MsgType = AU 664 ConfirmID Y 75 TradeDate Y 60 TransactTime Y Date/Time Allocation Instruction Ack generated 940 AffirmStatus Y 774 ConfirmRejReason N Required for ConfirmStatus = 1 (rejected) 573 MatchStatus N Denotes whether the financial details provided on the Confirmation were successfully matched. 58 Text N Can include explanation for AllocRejCode = 7 (other) 354 EncodedTextLen N Must be set if EncodedText field is specified and must immediately precede it. 355 EncodedText N Encoded (non-ASCII characters) representation of the Text field in the encoded format specified via the MessageEncoding field. Component Block - <StandardTrailer> Y Related Messages |
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