Office 365 SharePoint users are covered by Mailbox Archive Solution licenses, which appear in the License Summary Report under the information about Application Users.
The software calculates license usage as follows:
- For SharePoint, site users with Office 365 (SharePoint) License that are part of the protected sites are counted as part of subscription usage. Site users with view or read only permissions are excluded. External SharePoint users who have access to one or more sites, files or folders do not consume license. The software calculates the licensed users that are assigned to the protected SharePoint Online sites.