# REVERSE EXECUTION

**URL:** <https://forum.fixtrading.org/t/reverse-execution/3306>\
**Category:** General Q&A\
**Tags:** general-qa, xid\_166710, imported\
**Created:** [December 12, 2001, 2:56pm UTC](https://forum.fixtrading.org/t/reverse-execution/3306 "2001-12-12T14:56:00Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![fplpo\_x](https://avatars.discourse-cdn.com/v4/letter/f/7ab992/32.png) [@fplpo\_x](https://forum.fixtrading.org/u/fplpo_x)\
**Post date:** [December 12, 2001, 2:56pm UTC](https://forum.fixtrading.org/t/reverse-execution/3306/1 "2001-12-12T14:56:00Z")

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Imported from previous forum

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**Author:** ![fplpo\_x](https://avatars.discourse-cdn.com/v4/letter/f/7ab992/32.png) [@fplpo\_x](https://forum.fixtrading.org/u/fplpo_x)\
**Post date:** [December 12, 2001, 2:56pm UTC](https://forum.fixtrading.org/t/reverse-execution/3306/2 "2001-12-12T14:56:00Z")

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[original email was from Le Floch mikael - [mikael.lefloch@internet-quest.fr](mailto:mikael.lefloch@internet-quest.fr) ]  
Im a a broker and i ask me if it’s possible with fix protocol to cancel or modify with only ONE reverse execution (or something else) 2,3 or more execution report :

Ex

New Order (qty=20) --\> Sell side  
\<-ACK  
\<-- PF (5)  
\<-- PF (10)  
\<-- reverse (15) (in one time)  
(exectranstype = cancel or Correct)  
\<-- PF (5)  
\<-- Filled (20)

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**Author:** ![fplpo\_x](https://avatars.discourse-cdn.com/v4/letter/f/7ab992/32.png) [@fplpo\_x](https://forum.fixtrading.org/u/fplpo_x)\
**Post date:** [December 12, 2001, 3:02pm UTC](https://forum.fixtrading.org/t/reverse-execution/3306/3 "2001-12-12T15:02:00Z")

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[original email was from Ian Orford - [ian.orford@drkw.com](mailto:ian.orford@drkw.com) ]  
You are able to modify one of the Partial Fill messages. Notice that you have to supply a new ExecID and an OrigExecID to tell the client which execution has changed.

Up to and including FIX 4.2, you would set ExecTransType to Correct to do this. The ExecTransType tag has gone in 4.3, so you have to use ExecType instead.

Hope this helps.

\> Im a a broker and i ask me if it’s possible with fix protocol to cancel or modify with only ONE reverse execution (or something else) 2,3 or more execution report :  
\>  
\> Ex  
\>  
\> New Order (qty=20) --\> Sell side  
\> \<-ACK  
\> \<-- PF (5)  
\> \<-- PF (10)  
\> \<-- reverse (15) (in one time)  
\> (exectranstype = cancel or Correct)  
\> \<-- PF (5)  
\> \<-- Filled (20)  
\>

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<div class="post-metadata">

**Author:** ![fplpo\_x](https://avatars.discourse-cdn.com/v4/letter/f/7ab992/32.png) [@fplpo\_x](https://forum.fixtrading.org/u/fplpo_x)\
**Post date:** [December 12, 2001, 6:57pm UTC](https://forum.fixtrading.org/t/reverse-execution/3306/4 "2001-12-12T18:57:00Z")

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[original email was from Ryan Pierce - [rpierce@taltrade.com](mailto:rpierce@taltrade.com) ]  
\> Im a a broker and i ask me if it’s possible with fix protocol to cancel or modify with only ONE reverse execution (or something else) 2,3 or more execution report :

No. In the two trade case, you can send two trade busts and a new trade, or can bust one and correct the other.