Rest API Post User to SharePoint Group will not add user using SharePoint Designer. Error System.UnauthorizedAccessException


  • Hello,

    I am successfully posting to custom lists using the REST API calls in SharePoint Designer and I can successfully Get using REST Calls to work from a SharePoint Group.  When I try to POST a user to a SharePoint group, I receive the error   Error System.UnauthorizedAccessException Access denied. You do not have permission to perform this action or access this resource.  Does anyone have a suggestion?  I have even tried an APP Step.  I am the Group Owner. 

    Thank you 

    Wednesday, June 22, 2016 4:28 PM