# Logging in and out Your main CCS License includes a number of Supervisor and Wallboard licenses. These indicate how many different Supervisor and Wallboard Apps you can have running across your LAN at any one time. Each active CCS license, whether Supervisor or Wallboard, has an application key associated with it that the browser uses to identify itself when communicating with the CCS Web Server. See Browser sessions and licenses for more details of how CCS manages licenses and application keys. When you load a CCS App into the browser it first checks to see if there is an active application key already associated with the browser, checking the browsers LocalStorage data for any active key details. If it finds a valid application key the App will automatically log itself on. If there is no active key a logon dialog is displayed for you to log on with. Your browser may remember details of previous login attempts and auto-fill fields for you. The Supervisor login dialog is slightly different to the Wallboard login dialog. The Wallboard App login requires a wallboard name and the language to use. You can enter any name you wish, but the name is mainly required to identify the App in the event that you want to revoke it's license, so we recommend you use something relevant and easy to identify, the COMPUTERNAME of the PC you are running the App on is one simple solution. Also select the language you want thein Wallboard App from the drop down list of options, choose from the list of available languages. The Supervisor App log in requires a valid User name and Password combination. See Administrator for more details of how to create Users and modify user account details. The language used will be the language you have configured for the User. If you make a mistake, an error dialog is displayed. It's important to log out properly when closing or navigating away from any of the Apps. Simply click the white circle in the header navigation bar, on the right hand side of the bar, to Logout. This action will properly release the license slot you were using for the App and allow other people to log onto the App using the freed up license slot. If you try to login and there are no available license slots, because you have already reached your CCS License limit, a warning dialog is displayed. To free a License, either log it off manually or use the revoke option. See Revoking licenses for more details.