Guest access in Microsoft Teams

Guest access in Microsoft Teams allows teams in your organization to collaborate with people outside your organization by granting them access to teams and channels.

Guest access is included with all Office 365 Business Premium, Office 365 Enterprise, and Office 365 Education subscriptions. No additional Office 365 license is necessary. Guest access is a tenant-level setting in Microsoft Teams and is turned off by default.

A guest is someone who isn't an employee, student, or member of your organization. They don't have a school or work account with your organization. For example, guests may include partners, vendors, suppliers, or consultants. Only users who have an email address corresponding to an Azure Active Directory or Office 365 work or school account can be added as a guest user.

Organizations using Teams can provide external access to teams, documents in channels, resources, chats, and applications to their partners, while maintaining complete control over their own corporate data.

Teams is built upon Office 365 Groups and provides a new way to access shared assets for an Office 365 group. Teams is the best solution for persistent chat among group/team members. Office 365 Groups is a service that provides cross-application membership for a set of shared team assets, like a SharePoint site or a Power BI dashboard, so that the team can collaborate effectively and securely.

More information

Help, practical guidance, and tools

Deep Dive into Guest Access
Enabling Guest Access in Microsoft Teams
Adding Guests in Microsoft Teams