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Power Pages
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Duplicate detection via portal

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Posted on by MH-02091453-0 125

I have seen some discussion about using alternate keys to prevent duplicate detection in portals.  

 

I need to prevent users from adding the same entry twice in to a table.

 

Example,

User skills table

Lookup - UserName

Looup- SkillName

 

I need to ensure the same user does not enter the same skill twice via portal form.

 

Any ideas?

 

Thanks

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  • Fubar Profile Picture
    Fubar 8,487 Super User 2026 Season 1 on at

    Either use an Alternate Key (applies to everything not just Portal) or write a Plugin or Custom Workflow Activity and set up to be synchronous (real-time) that will query the existing data to check not a duplicate.  Could also use a Custom Validation on the Portal and make either call via Portal Web API or (the older) call a Web Page that returns JSON results. 

  • ragavanrajan Profile Picture
    ragavanrajan 7,044 Most Valuable Professional on at

    Hi @MichelleH 

     

    Alternate keys will definitely work. Official reference below 

    https://docs.microsoft.com/en-us/power-apps/developer/data-platform/define-alternate-keys-entity 

     

    In some cases, duplicate detection rules will help but alternate key is the easiest way.  

     


    Hope it helps. 
    ------------

    If you like this post, give it a Thumbs up. Where it solved your request, Mark it as a Solution to enable other users to find it.

     

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