You should have a license for every active device that is registered in Control Hub. When you add a new device and you've used 90% or more of your licenses, you see a notice on how many licenses there are left. If all licenses have been used up, you see a notice to get more licenses. You can still add a device despite this notice.



In Control Hub, you can see how many device licenses your organization has available. Go to Account and select Subscriptions . Here you can find a summary of your license usage.

On the Devices page, you can filter the devices list to see which devices have a license and which don't.