Office 365 license management
When assigning the Office 365 app to a user or a group, you can specify which Office 365 services are enabled for them. For example, you can assign Microsoft E3 licenses with only Exchange and Lync enabled for your Sales team, while your Support team gets an E3 license with only SharePoint Online enabled.
When assigning a user or a group to Office 365, you see the Licenses option. If you have selected Provisioning Type as Licenses/Roles Management Only these licenses and roles are the only attributes available. Office 365 licenses that do not have a status set are not displayed.
To specify which services are made available to your selected user or group, select the services you want the selected user or group to be licensed to use and continue provisioning as before.