SharePoint 2013 – An unhandled exception occurred during the execution of the workflow instance

An unhandled exception

I had a problem with a SharePoint Designer Workflow I was creating a task and assigned it to a SharePoint group. Then I got the error:

Details: An unhandled exception occurred during the execution of the workflow instance. Exception details: System.ApplicationException: HTTP 401 {“error”:{“code”:”-2147024891, System.UnauthorizedAccessException”,”message”:{“lang”:”en-US”,”value”:”Access denied. You do not have permission to perform this action or access this resource

Your solution

I checked the permissions of the SharePoint group. Set the permissions of the group “Who can view the members of the group” set this to Everyone. ….

And the workflow now works.

Hopefully this will help you too.

2 thoughts on “SharePoint 2013 – An unhandled exception occurred during the execution of the workflow instance

  1. commented on June 2, 2015 by Thank you

    I had the same error when I tried to create a task to a custom task list. Your solution worked!
    Thanks!

  2. commented on August 22, 2016 by Gleb

    Thank you very much for your post. I spent whole day to sort out this problem. Luckly I found your post.

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