Sharepoint customization with PowerApps. Dropdown cascade, option don't appear

lucia del campo 1 Reputation point

Hi Everyone

So, the SharePoint (shp) list that is update with the PowerApps is HW- large items

The dropdown list comes from other SharePoint lists that show the options according to the category. Eg. If its phone, os will be Android/iOS but if is computer Windows…

The fields that I am having trouble are Operation System, Operation System Information and CPU.


The dropdown doesn't show me the options.



  • Default: ThisItem.os ….. If I put ThisItem.os.Value the red cross appears
  • Update: DataCardValue4.Selected.Result


  • Items: Distinct(Filter(Relationship_os_category,Title= Category_input.Selected.Value),os)

I have tried lot of things but anything seems to be working

Many thanks


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  1. Echo Du_MSFT 16,931 Reputation points

    Hello @lucia del campo ,

    Welcome to Q&A Forum!

    According to my research, you problem is more related to Power Apps. We suggest that you can go to the Microsoft Power Apps Community for professional help.

    If you have any concerns, please feel free to reply.

    Echo Du

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