Unhandled system exception: Error while accessing Report server. The permissions granted to user 'domain\user' are insufficient for performing this operation.

Version 1

    Details

    When accessing reports receiving the following error message:

    unhandled system exception: Error while accessing Report server. The permissions granted to user 'domain\user' are insufficient for performing this operation.


    Resolution

    Modify the IIS Application Pool HeatAppServerAppPool identity using a user with permissions for accessing Reporting Services in IIS manager.