Resolve license conflicts in Office 365 for business
We recommend that you buy the licenses that you need for your subscription before you create new users. That way, a license can be assigned to new users as user accounts are created. If you have already assigned all of your licenses to users, but some of the licenses have expired, or you try to remove a license that is already assigned to a user, you will have license conflicts. For more information, see Remove licenses from your subscription.
How do I view license conflicts?
In the admin center, go to the Billing > Licenses page.
If you're using Office 365 Germany, go to this Licenses page.
If you're using Office 365 operated by 21Vianet, go to this Licenses page.
Check the Status column for information about the conflict. If there's a conflict, you'll see a warning message, that says one or more users need a valid license.
You won't see the Status column if there are no conflicts.
How do I resolve license conflicts?
You can resolve license conflicts by either buying more licenses or by removing licenses from users who no longer need them. You can optionally delete a user account to free a license.