(Updated) Microsoft Teams: Breakout rooms now supported in meetings with up to 1,000 attendees

Message ID

MC1330891

Service

Microsoft Teams

Summary

Microsoft Teams now supports breakout rooms in meetings with up to 1,000 attendees, allowing up to 200 breakout rooms per meeting. Rollout begins early July 2026 for Targeted Release and mid-August 2026 for General Availability. No action is required; the feature is enabled by default.

Details

Updated August 4, 2026: We have updated the timeline. Thank you for your patience.

[Introduction]

Microsoft Teams is expanding breakout room capacity to support larger meetings. With this update, breakout rooms can be used in meetings with up to 1,000 attendees, allowing organizers to run large meetings while still enabling smaller group collaboration. This change removes the need to limit meeting size in order to use breakout rooms.

This message is associated with Microsoft 365 Roadmap ID 560320.

[When this will happen]

Targeted Release: Rollout begins in early July 2026 and is expected to complete by late July 2026.
General Availability (Worldwide, GCC, GCCH, and DoD): Rollout begins in mid-August 2026 (previously July) and is expected to complete by late September 2026 (previously late July).

[How this affects your organization]

Who is affected

Meeting organizers and participants using Microsoft Teams
Microsoft 365 tenants

What will happen

Breakout rooms will be supported in meetings with up to 1,000 attendees.
Organizers can create up to 200 breakout rooms per meeting.
Organizers no longer need to limit meeting size to enable breakout rooms.
The feature is enabled by default and respects existing Teams meeting policies.
There is no change to the breakout room experience for meetings under the previous 300‑attendee limit.

[What you can do to prepare]

No action is required.
Consider informing meeting organizers and training owners about the expanded breakout room capacity.
Update any internal guidance or training materials that reference breakout room attendee limits.

[Compliance considerations]

No compliance considerations identified. Review as appropriate for your organization.

Change History

Show

Published: June 1, 2026

Last Updated: August 4, 2026

August 4, 2026 at 6:30 PM Updated

Title

Microsoft Teams: Breakout rooms now supported in meetings with up to 1,000 attendees

New

(Updated) Microsoft Teams: Breakout rooms now supported in meetings with up to 1,000 attendees

Summary

Microsoft Teams will support breakout rooms in meetings with up to 1,000 attendees, allowing up to 200 breakout rooms per meeting. This feature, enabled by default, removes previous attendee limits and rolls out globally in July 2026. No action is required, but informing organizers is recommended.

New

Last Updated Date

2026-06-01T23:25:27.723Z

New

2026-08-04T16:27:59.950Z

Tags

New feature,User impact,Admin impact

New

Updated message,New feature,User impact,Admin impact

Body Content

[Introduction]Microsoft Teams is expanding breakout room capacity to support larger meetings. With this update, breakout rooms can be used in meetings with up to 1,000 attendees, allowing organizers to run large meetings while still enabling smaller group collaboration. This change removes the need to limit meeting size in order to use breakout rooms.This message is associated with Microsoft 365 Roadmap ID <a href="https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=560320#Roadmap" target="_blank">560320</a>.[When this will happen]<ul><li>Targeted Release: Rollout begins in early July 2026 and is expected to complete by late July 2026.</li><li>General Availability (Worldwide, GCC, GCCH, and DoD): Rollout begins in July 2026 and is expected to complete by late July 2026.</li></ul>[How this affects your organization]Who is affected<ul><li>Meeting organizers and participants using Microsoft Teams</li><li>Microsoft 365 tenants</li></ul>What will happen<ul><li>Breakout rooms will be supported in meetings with up to 1,000 attendees.</li><li>Organizers can create up to 200 breakout rooms per meeting.</li><li>Organizers no longer need to limit meeting size to enable breakout rooms.</li><li>The feature is enabled by default and respects existing Teams meeting policies.</li><li>There is no change to the breakout room experience for meetings under the previous 300‑attendee limit.</li></ul>[What you can do to prepare]<ul><li>No action is required.</li><li>Consider informing meeting organizers and training owners about the expanded breakout room capacity.</li><li>Update any internal guidance or training materials that reference breakout room attendee limits.</li></ul>[Compliance considerations]No compliance considerations identified. Review as appropriate for your organization.

New

Updated August 4, 2026: We have updated the timeline. Thank you for your patience. [Introduction]Microsoft Teams is expanding breakout room capacity to support larger meetings. With this update, breakout rooms can be used in meetings with up to 1,000 attendees, allowing organizers to run large meetings while still enabling smaller group collaboration. This change removes the need to limit meeting size in order to use breakout rooms.This message is associated with Microsoft 365 Roadmap ID <a href="https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=560320#Roadmap" target="_blank">560320</a>.[When this will happen]<ul><li>Targeted Release: Rollout begins in early July 2026 and is expected to complete by late July 2026.</li><li>General Availability (Worldwide, GCC, GCCH, and DoD): Rollout begins in mid-August 2026 (previously July) and is expected to complete by late September 2026 (previously late July).</li></ul>[How this affects your organization]Who is affected<ul><li>Meeting organizers and participants using Microsoft Teams</li><li>Microsoft 365 tenants</li></ul>What will happen<ul><li>Breakout rooms will be supported in meetings with up to 1,000 attendees.</li><li>Organizers can create up to 200 breakout rooms per meeting.</li><li>Organizers no longer need to limit meeting size to enable breakout rooms.</li><li>The feature is enabled by default and respects existing Teams meeting policies.</li><li>There is no change to the breakout room experience for meetings under the previous 300‑attendee limit.</li></ul>[What you can do to prepare]<ul><li>No action is required.</li><li>Consider informing meeting organizers and training owners about the expanded breakout room capacity.</li><li>Update any internal guidance or training materials that reference breakout room attendee limits.</li></ul>[Compliance considerations]No compliance considerations identified. Review as appropriate for your organization.

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