Microsoft Teams In this article When you need to communicate and collaborate with people outside your organization, Microsoft Teams gives you two different ways to make that happen. The first — external access federation — lets you find, call, and chat with users in other domains for example, contoso. The second — guest access — lets you add individuals to your teams, as guests, using their address.
You can collaborate with guests as you would with any other users in your organization. You can use both external access and guest access if you want - one doesn't preclude the other. External users have no access to your organization's teams or team resources.
Choose external access when you want to communicate with users outside your organization who are still on Skype for Business online or on premises or Skype coming in early External access is lt on by default in Teams, which means your org can communicate with all external domains. The Teams admin can turn it off or specify which domains to include or exclude.
To learn more, read Manage external access. If you want external users to have access to teams and cyat, guest access might be a better way to go.
Guest access Use guest access to add an individual user regardless of domain to a team, where they can chat, call, meet, and collaborate on organization files stored in SharePoint or OneDrive for Businessusing Microsoft or Jp apps such as Word, Excel, or PowerPoint. A guest user can be given nearly all the same Teams capabilities as a native team member.
To learn more, read Guest access in Teams. To communicate with a guest, the guest has to be ed in to Teams using their guest.
Guest users have access to more resources in Teams - such as files, teams, and channels - than external-access federated users. To learn more, read Manage cbat access.
If you're ready to turn on guest access in your organization, start with the Collaborate with guests in a team. Compare external and guest access Feature.