Is the following setup allowed by Microsoft SharePoint Online licensing:
Domain accounts for external users are created in the corporate Active Directory, but are not assigned any Office 365 license. SharePoint team sites are then shared with these users.
I've verified it works: the external users are able to successfully use the team sites.
I'm wondering, though, if this setup is allowed by Microsoft licensing: are external users still counted as being 'free' external users, when they are in fact using a corporate Office 365 login?
Those external users are not employees of our company. For example: a lot of them are employees of suppliers of our company.