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Power Platform Community / Forums / Power Apps / Unmatched records quer...
Power Apps
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Unmatched records query in PowerApps

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Posted on by

Hi all,

 

I am trying to build some data checking tools into an app. I want to be able to find records that are missing data. Within one datasouce (they are all SharePoint lists) I can make a collection and filter it to display records where a column is missing data.

 

I am stuggling to replicate this across multiple lists - so asking to show all records from datasource 1 which do not have a matching record in datasource 2. Is anyone able to point my in the right direction for this?

 

Thanks,

Sam

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  • Verified answer
    v-yutliu-msft Profile Picture
    Microsoft Employee on at

    Hi @SamGibbs ,

    Do you want to replicate data across multiple lists and filter out the not matching record in datasource1?

    If so, you need a unique field, which could be used to justify whether there's matching record.

    I assume as Title field is the special field.

    Then you could use formula like this to filter:

    Filter(datasource1,Not(Title in datasource2.Title))

    You will get records that do not have matching Title value of data source2 in data source1.

     

     

    Best regards, 

  • SG-19021613-0 Profile Picture
    on at

    Hi

     

    Thanks for the pointer - that didn't quite work as I needed some extra guidance, but I found this https://powerusers.microsoft.com/t5/Building-Power-Apps/Filter-a-collection-to-exclude-items/m-p/251106 which resolved it (it also got rid of the delegation issues).

  • anshenterprice Profile Picture
    27 on at

    @v-yutliu-msft  in my synario , i am using Combobox instead of dropdown.
    Can you assist me on this?

    Thanks

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