What's the difference between shared channels and regular channels, and when do I pick shared?
Shared channels (built on Azure AD B2B Direct Connect) let external users participate in a channel without becoming guests in your tenant. They stay in their tenant and see your channel alongside their own. That's a different world from guest access.
Try this first
- 1Regular channel: only team members see it. Anyone who needs to join becomes a team member (internal or guest). Fits internal projects and small external collaboration.
- 2Shared channel: you share a channel with external colleagues or partners. They don't need to become guests in your tenant. They see the channel in their own Teams client next to their channels. Fits long-running work with fixed external partners.
- 3For shared channels, B2B Direct Connect must be on in your tenant and the partner's. Both admins create a cross-tenant access policy and allow it for groups or the whole tenant. Configure in Entra admin > External Identities > Cross-tenant access settings.
- 4Limits: shared channels, like private channels, have their own SharePoint site. Not full app support (growing). Not all external partners use Teams or know how shared channels work, which causes support questions.
- 5Test first with one partner org. Create a shared channel, invite one person, and see how it looks on their side. That prevents surprises at rollout.
When to bring us in
If you continuously work with the same 2-3 external organizations (client team during implementations, or a fixed vendor), shared channels save a lot of guest-account churn. An hour of setup and a test shared channel will tell you if it fits.
See also
- Outlook crashes or freezes on large attachmentsUsually the mailbox cache is the culprit, not Outlook itself. Shrinking or relocating usually helps within ten minutes.
- Teams: they cannot hear me, or I hear nothingIn our experience Teams usually picked the wrong audio device after a Windows update or a new headset.
- OneDrive has stopped syncingThe cloud icon is grey or has a warning. Locally changed files are not showing up for colleagues.
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