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Fix International Calling Plan License Requires Additional Services in Microsoft 365
Question details
The user is unable to assign an International Calling Plan license in Microsoft 365 due to a prerequisite error.
- Product
- Microsoft 365
- Device & OS
- not provided
- Scenario
- Assigning communication licenses to a user in the Microsoft 365 Admin Center.
- Observed behavior
- The system displays an error message stating that the user needs one or more additional services before the International Calling Plan license can be applied.
Ensure you have global administrator or billing administrator privileges in the Microsoft 365 admin center before modifying user licenses.
Assign Prerequisite Services in the Admin Center
Identify and enable the base licenses required for the Calling Plan add-on to resolve the conflict.
International Calling Plans are add-on licenses. They cannot function standalone and strictly require a base Microsoft 365 subscription coupled with a Microsoft Teams Phone Standard license.
Navigate to admin.microsoft.com and log in with your administrator credentials.
Go to 'Users' > 'Active users' in the left-hand navigation pane, and click on the specific user you want to modify.
In the user's properties side pane, click on the 'Licenses and apps' tab to view their current subscriptions.
Ensure the user has a qualifying base license enabled (such as Microsoft 365 E5, or an E1/E3/Business plan combined with a Teams Phone Standard license).
Once the required base services are selected, check the box for the International Calling Plan and click 'Save changes'.
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Frequently Asked Questions
What are the exact base license prerequisites for an International Calling Plan?
A user typically needs a Teams Phone Standard license, which in turn requires a qualifying Microsoft 365 base plan (such as Business Basic, Standard, Premium, E1, or E3). Enterprise E5 plans natively include Teams Phone Standard.
Why is the Calling Plan option completely grayed out in the admin center?
The option remains disabled if the user's profile location is set to a region where Microsoft Calling Plans are not supported, or if you lack sufficient available licenses in your organization's billing inventory.
Does the International Calling Plan also include domestic minutes?
Yes, Microsoft's International Calling Plan typically serves as a combined plan that includes both domestic and international minutes, though exact limits depend on your regional billing tier.
Can I assign a Calling Plan if the user doesn't use Microsoft Teams?
No. Calling Plans are an add-on specifically designed for Microsoft Teams Phone, requiring a Teams-eligible base subscription to route the calls.
