# Duplicate fields

**URL:** https://forum.fixtrading.org/t/duplicate-fields/12102
**Category:** General Q&A
**Tags:** xid\_164482, 42-changes, imported
**Created:** [November 14, 2008, 12:57pm UTC](https://forum.fixtrading.org/t/duplicate-fields/12102 "2008-11-14T12:57:32Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![sanjeevsukumara\_x](https://avatars.discourse-cdn.com/v4/letter/s/ce73a5/32.png) [@sanjeevsukumara\_x](https://forum.fixtrading.org/u/sanjeevsukumara_x)
#### Post date: [November 14, 2008, 12:57pm UTC](https://forum.fixtrading.org/t/duplicate-fields/12102/1 "2008-11-14T12:57:32Z")

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Imported from previous forum

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### Author: ![sanjeevsukumara\_x](https://avatars.discourse-cdn.com/v4/letter/s/ce73a5/32.png) [@sanjeevsukumara\_x](https://forum.fixtrading.org/u/sanjeevsukumara_x)
#### Post date: [November 14, 2008, 12:57pm UTC](https://forum.fixtrading.org/t/duplicate-fields/12102/2 "2008-11-14T12:57:32Z")

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Is possible to have duplicate fields in a fix 4.2 message please?

What I mean is

I know the following is valid (repeating group and it has 2 entries)

…146=2;55=ABC;56=2;55=CBA;56=3;…

but is this valid?

…146=1;55=ABC;55=ABC;

Thanks

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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: [November 18, 2008, 8:28pm UTC](https://forum.fixtrading.org/t/duplicate-fields/12102/3 "2008-11-18T20:28:08Z")

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[original email was from Saatwik Khanna - [saatwik.khanna@bofasecurities.com](mailto:saatwik.khanna@bofasecurities.com) ]  
Duplicate tags (not part of a repeating group ) should not be used in a FIX message since based on the counter party system implementation you may end up with a replaced, corrupted or a concatenated result value.

> Is possible to have duplicate fields in a fix 4.2 message please?
> 
> What I mean is
> 
> I know the following is valid (repeating group and it has 2 entries)
> 
> …146=2;55=ABC;56=2;55=CBA;56=3;…
> 
> but is this valid?
> 
> …146=1;55=ABC;55=ABC;
> 
> Thanks

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<div class="post-metadata">

### Author: ![sanjeevsukumara\_x](https://avatars.discourse-cdn.com/v4/letter/s/ce73a5/32.png) [@sanjeevsukumara\_x](https://forum.fixtrading.org/u/sanjeevsukumara_x)
#### Post date: [November 21, 2008, 3:11pm UTC](https://forum.fixtrading.org/t/duplicate-fields/12102/4 "2008-11-21T15:11:29Z")

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> Duplicate tags (not part of a repeating group ) should not be used in a  
> FIX message since based on the counter party system implementation you  
> may end up with a replaced, corrupted or a concatenated result value.
> 
> > Is possible to have duplicate fields in a fix 4.2 message please?
> > 
> > What I mean is
> > 
> > I know the following is valid (repeating group and it has 2 entries)
> > 
> > …146=2;55=ABC;56=2;55=CBA;56=3;…
> > 
> > but is this valid?
> > 
> > …146=1;55=ABC;55=ABC;
> > 
> > Thanks

Thats what I thought.

Many thanks