Assign participants to breakout rooms using CSV import in Microsoft Teams meetings

Microsoft Teams will support CSV import for breakout room assignments starting May 2026, enabling organizers to bulk create rooms and pre-assign participants. The feature is enabled by default, requires no admin action, and allows modifications during meetings, improving setup efficiency for structured sessions. Introduction We’re improving breakout room setup in Microsoft Teams by adding support for CSV import of breakout room assignments. This update helps organizers reduce manual setup time and prepare structured meetings—such as trainings, workshops, and large collaboration sessions—more efficiently. This message is associated with Roadmap ID 559387. When this will happen: Targeted Release: We will begin rolling out in early May 2026 and expect to complete by mid-May 2026. General Availability (Worldwide): Rollout begins in mid-May 2026 and completes by late May 2026. How this affects your organization: Who is affected: Meeting organizers who use Breakout rooms in Microsoft Teams meetings What will happen: Organizers can import a CSV file to: Create breakout rooms in bulk Assign participants to specific rooms before the meeting starts Imported assignments can still be modified using existing breakout room controls during or before the meeting The feature is enabled by default and does not require admin configuration Existing breakout room policies and controls are respected What you can do to prepare: No action is required from administrators. Inform meeting organizers about this new capability Update internal documentation or training materials as needed Before rollout, we will update this post with new documentation. Compliance considerations: No compliance considerations identified, review as appropriate for your organization. Message ID: MC1280561

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