The number of devices for which you can take content offline depends on the number of WEYV Units in your group. For every 10 WEYV Units you have in your subscription, you may take up to 2 devices offline. For example, if your group has 20 WEYV Units, you may take up to 4 devices offline at one given time.

As an admin, you're able to log into your account to see how many devices your group has offline by clicking on Offline Devices