You have configured your Volume Purchase Program (VPP) account. Refer to the
topic Setting Up Volume Purchase Program Licenses in
Administrator's Guide to configure Volume Purchase Program
settings.
There are enough VPP licenses available for your Enterprise Mobile Security
application that you want to deploy for each user.
You have configured Mobile Security for the Apple
Device Enrollment Program (DEP), and make sure that the option under
Enterprise Mobile Security Agent License section is
selected. Refer to the topic Setting Up Mobile Security for the Device Enrollment
Program in Administrator's Guide for the
configuration.
This method enables you to download and install Mobile Device Agent (MDA)
automatically without logging in to iTunes account.