Turn on or turn off guest access to Microsoft Teams
Until February 2021, guest access is turned off by default. You must turn on guest access for Teams before admins or team owners can add guests. After you turn on guest access, it might take a few hours for the changes to take effect. If users see the message Contact your administrator when they try to add a guest to their team, it's likely that either guest access hasn't been turned on or the settings aren't effective yet.
After February 2021, guest access in Microsoft Teams will be turned on by default for new customers & existing customers who haven't configured this setting. When this change is implemented, if you've not already configured guest access capability in Microsoft Teams, that capability will be enabled in your tenant. If you want guest access to remain disabled for your organization, you'll need to confirm that the guest access setting is set to Off instead of Service default.
Turning on guest access depends on settings in Azure Active Directory, Microsoft 365, SharePoint, and Teams. For more information, see Collaborate with guests in a team.
Configure guest access in the Teams admin center
Sign in to the Microsoft Teams admin center.
Select Users > Guest access.
Set Allow guest access in Teams to On.
Under Calling, Meeting, and Messaging, select On or Off for each capability, depending on what you want to allow for guests.
- Make private calls – Turn this setting On to allow guests to make peer-to-peer calls.
- IP video - Turn this setting On to allow guests to use video in their calls and meetings.
- Screen sharing mode – This setting controls the availability of screen sharing for guests.
- Turn this setting to Disabled to remove the ability for guests to share their screens in Teams.
- Turn this setting to Single application to allow sharing of individual applications.
- Turn this setting to Entire screen to allow complete screen sharing.
- Meet Now – Turn this setting On to allow guests to use the Meet Now feature in Microsoft Teams.
- Edit sent messages - Turn this setting On to allow guests to edit messages they previously sent.
- Delete sent messages – Turn this setting On to allow guests to delete messages they previously sent.
- Chat – Turn this setting On to give guests the ability to use chat in Teams.
- Giphy in conversations – Turn this setting On to allow guests to use Giphys in conversations. Giphy is an online database and search engine that allows users to search for and share animated GIF files. Each Giphy is assigned a content rating.
- Giphy content rating – Select a rating from the drop-down list:
- Allow all content - Guests will be able to insert all Giphys in chats, regardless of the content rating.
- Moderate - Guests will be able to insert Giphys in chats, but will be moderately restricted from adult content.
- Strict – Guests can insert Giphys in chats, but will be restricted from inserting adult content.
- Memes in conversations - Turn this setting On to allow guests to use Memes in conversations.
- Stickers in conversations – Turn this setting On to allow guests to use stickers in conversations.
- Immersive reader for messages - Turn this setting On to allow guests to use immersive reader in Teams.
External access (federation) vs. guest access
External access (federation) and guest access are different:
- External access gives access permission to an entire domain.
- Guest access gives access permission to an individual.
For a detailed comparison, see Communicate with users from other organizations.