MC1134737 | (Updated) Microsoft Teams: Private channels increased limits and transition to group compliance

Service

Microsoft Teams

Last Updated

2026-06-03T16:50:16.643Z

Published

2025-08-13T23:09:57Z

Message ID

MC1134737

Update as of June 2, 2026 – We have updated the timeline. Thank you for your patience. Migration of channels is complete with a few pending channels for which we have shared more information here for admin remediation. Admins must take action within 30 days, by end of July, 2026, to remediate specific private channel configurations that are currently not eligible for migration. There are two impacted scenarios. • The first includes private channels with no users, where the roster is empty and the channel is inaccessible to any tenant user. • The second includes private channels that contain only guest users and no in-tenant owners. In both cases, these channels cannot be migrated in their cu...

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