Permission & Access Issues

Microsoft 365 Business Basic Guest Access and Licensing Costs Explained

Ayan Masood Oct 8, 2026 870 views

Question details

The user needs clarification on whether inviting external guests to Microsoft 365 Business Basic or Power BI requires purchasing additional licenses.

How to Manage Microsoft 365 Business Basic Guest Access and Licensing Costs

Product: Microsoft 365 Business Basic
Device & OS: not provided
Scenario: Inviting external users to access shared Microsoft 365 resources, Teams, and Power BI reports via Microsoft Entra B2B.
Observed behavior: Guests need to access organizational resources, but it is unclear if this incurs additional licensing costs for the tenant.

Before you start

Ensure you have global admin or guest inviter privileges in your Microsoft Entra ID (formerly Azure AD) tenant to configure external sharing policies.

Solution 1Recommended

Configure Guest Access via Microsoft Entra B2B

Use Microsoft Entra B2B to invite external users for free without assigning them a dedicated Microsoft 365 license.

Basic guest access through Microsoft Entra ID Free allows you to collaborate with external partners without additional costs. Guests can access Teams and shared documents, but they do not receive a full Microsoft 365 license.

Sign in to the Admin Center

Navigate to Users

On the left sidebar, go to Identity > Users > All users.

Create a Guest Invitation

Click on 'New guest user' at the top of the page and select 'Invite user'.

Send the Invitation

Fill in the external user's email address, add an optional personal message, and click 'Invite' to send the invitation.

Configure Guest Access via Microsoft Entra B2B

Teams Guest Access: Guest access in Microsoft Teams is included at no additional cost for Business Basic subscribers, allowing external partners to chat and join meetings.

Solution 2

Determine Power BI Licensing Requirements for Guests

While basic guest access is free, sharing Power BI reports has specific licensing prerequisites depending on your workspace setup.

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Frequently Asked Questions

Do external guests need a Microsoft 365 Business Basic license?

No, basic guest access through Microsoft Entra B2B collaboration does not require an individual Microsoft 365 license. Guests can access shared resources like Teams and SharePoint files for free.

Can external guests access Power BI reports for free?

It depends on the workspace capacity. If the report is hosted in a Premium capacity workspace, guests can view it for free. Otherwise, they will need a Power BI Pro or Premium Per User license, either from their own organization or assigned by your tenant.

Are there limits to how many guests I can invite?

Under the Microsoft Entra External ID billing model, you can generally invite up to 50,000 monthly active users (MAU) for free. You only incur charges if you exceed this limit or use advanced premium security features for guests.

Document & File Issues