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    Nintex Knowledge Base

    Error "An unhandled exception occurred during the execution of the workflow instance ... HTTP 403 ... Access denied. You do not have permission to perform this action or access this resource."

    Status: Validated

    ISSUE
    When running a workflow, the following error might occur: 

    Details: An unhandled exception occurred during the execution of the workflow instance. Exception details: System.ApplicationException: HTTP 403 {“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.”}}}

    ERROR CODE
    RESOLUTION
    Grant the user account running the workflow access to the Workflow History list for the site. 
    ADDITIONAL INFORMATION
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