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Power Automate - Using Connectors
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SharePoint Trigger Unauthorized Error

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Hello,

 

I am currently having an issue with a flow I have that triggers from a SharePoint site. The flow was working fine previously and had many successful runs, but all of a sudden the connection to the SharePoint site is now unauthorized. It seems like the issue was addressed back in May in this post: Microsoft Flow - SharePoint Connection - Unauthorized? The issue was said to be resolved a few days after the post was made and similar issues were reported. However, this seems to be happening once again!

 

Does anyone know how I should go about resolving this? Any help is greatly appreciated.

  • Verified answer
    v-bacao-msft Profile Picture
    v-bacao-msft on at
    Re: SharePoint Trigger Unauthorized Error

    Hi @Anonymous ,

     

    MS Flow Support does not currently display any messages about SharePoint services that are not working properly.

    I have been testing with SharePoint connector-related features today, and everything is fine.

    Please try clearing the browser cache and re-creating the connection for testing.

     

    Best Regards,

  • Pstork1 Profile Picture
    Pstork1 64,996 on at
    Re: SharePoint Trigger Unauthorized Error

    I might try a quick test Flow with a new connector before I delete the existing connector, but that's probably the next step yes.

  • Re: SharePoint Trigger Unauthorized Error

    Thanks for the prompt response. The permissions for the SharePoint site have not changed. I was previously an owner, and I am still an owner of the site. Would deleting and re-creating the connection be my next step?

  • Pstork1 Profile Picture
    Pstork1 64,996 on at
    Re: SharePoint Trigger Unauthorized Error

    Have you verified that permissions haven't changed on the Site/list that the Flow Trigger is connected?  That's the first thing to check.

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