ServiceNow Instance Troubleshooter Application Instance Trouble shooter Application Provided free by ServiceNow Needs activation of Plugin "Instance Troubleshooter". Any user with Scan User (scan_user) / System Admin (admin) role can run it on a Instance. Once plugin is installed it is available under "Instance Troubleshooter" Menu "Get Started" menu would allow us to see the 19 troubleshoot categories Access Control Lists Authentication Clone Core Platform Currency Discovery Email Forms and Fields Import / Export MID Server Mobile Performance Performance Analytics Reporting Service Catalog Service Portal SLA User Experience Workflow Each Category has set of checks that can be performed under that category Access Control Lists checks for High Security Settings plugin disabled ACLs using getRowCount may cause performance issue ACLs without role