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    Nintex Knowledge Base

    Error "Unauthorized attempt to update approval task by DOMAIN\Username" in LazyApproval Email

    Summary
    After sending a reply to a LazyApproval email request, an email with the following error might be received: Unauthorized attempt to update approval task by DOMAIN\Username, User.Email@domain.com. The response has not been recorded.

    Solution
    Ensure that each web front end (WFE) server on the farm that might be used to process emails for the LazyApproval workflow is running all of the following services.
    • Microsoft SharePoint Foundation Web Application
    • Microsoft SharePoint Foundation Workflow Timer Service
    • SMTP
    We recommend restarting the above services on all servers in the farm. In addition, ensure that Nintex Workflow DLLs are registered in the Global Assembly Cache (GAC).