Depends on if  you have an endpoint console or a GSM. In the endpoint you can see your seat count by clicking on the email address in the upper right hand corner and going to Manage Keycodes. In the GSM you can click on the Account tab. There you'll see the parent code and the seat count.  If you have any issues you can also contact support and they'll confirm it for you:

https://www.webrootanywhere.com/servicewelcome.asp?SOURCE=ENTERPRISEWSA

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