Thursday, January 31, 2019

SharePoint Provider Hosted Add-ins 401 unauthorized error

We were getting an error 'Unauthorized Access' without any apparent reason. This error was resolved by following steps:


  1. Uninstall the app from SharePoint host website and re-install it again.

  1. Manually run SharePoint Central Admin timer job named 'Refresh Trusted Security Token Services Metadata feed'

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