Managing Groups
Groups are collections of settings that are used to configure and restrict what features are available to users. Depending on device type, these settings can include what apps will be installed on the device, whether the device is limited to running a single app, what administrative functions are available to the device user, which sites are blocked on the device, and the like.
Groups for iOS and Android devices
iOS and Android groups are assigned to devices. An iOS or Android device is subject to the settings of its group regardless of who uses the device.
All devices must be assigned to a group. Devices can only be assigned to one group, although they can be transferred between groups at any time. As the settings available vary by device type each group is specific to a certain device type. You can create multiple groups for each device type, but all devices within those groups must be the same type.
Groups for Chromebooks
Chromebook groups are assigned to Organizational Units (OUs). Whenever a user belonging to a given OU signs into a Chromebook, they are subject to the group settings associated with their OU. This means that the user will experience the same group settings regardless of what Chromebook device they use.
Chromebook MDM has an additional feature, Work Settings, that enables you to apply different group settings to the user depending on whether they are at work/school or at home. When using the Work Settings feature, two groups are assigned to the OU: one that is active while the user is at work, and one that is active at home.