{"id":16639,"date":"2026-06-02T09:01:25","date_gmt":"2026-06-02T00:01:25","guid":{"rendered":"https:\/\/m365jp.net\/?p=16639"},"modified":"2026-06-02T09:02:36","modified_gmt":"2026-06-02T00:02:36","slug":"mc1330891-microsoft-teams-breakout-rooms-now-supported-in-meetings-with-up-to-1000-attendees","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-06-02-mc1330891-microsoft-teams-breakout-rooms-now-supported-in-meetings-with-up-to-1000-attendees","title":{"rendered":"MC1330891 | Microsoft Teams: Breakout rooms now supported in meetings with up to 1,000 attendees"},"content":{"rendered":"<div class=\"postie-post\">\n<div>\n<hr>\n<table id=\"section\">\n<tbody>\n<tr>\n<th width=\"95%\">MC1330891 | Microsoft Teams: Breakout rooms now supported in meetings with up to 1,000 attendees<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr>\n<table id=\"data\">\n<tbody>\n<tr>\n<th>Classification<\/th>\n<td>stayInformed<\/td>\n<\/tr>\n<tr>\n<th>Last Updated<\/th>\n<td>06\/01\/2026 23:25:27<\/td>\n<\/tr>\n<tr>\n<th>Start Time<\/th>\n<td>06\/01\/2026 23:25:12<\/td>\n<\/tr>\n<tr>\n<th>End Time<\/th>\n<td>08\/31\/2026 07:00:00<\/td>\n<\/tr>\n<tr>\n<th>Message Content<\/th>\n<td>\n<p><b>[Introduction]<\/b><\/p>\n<p>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.<\/p>\n<p>This message is associated with <b>Microsoft 365 Roadmap ID <a href=\"https:\/\/www.microsoft.com\/microsoft-365\/roadmap?filters=&amp;searchterms=560320#Roadmap\" target=\"_blank\">  560320<\/a><\/b>.<\/p>\n<p><b>[When this will happen]<\/b><\/p>\n<ul>\n<li><b>Targeted Release:<\/b> Rollout begins in<b> early July 2026<\/b> and is expected to complete by<b> late July 2026<\/b>.<\/li>\n<li><b>General Availability (Worldwide, GCC, GCCH, and DoD): <\/b>Rollout begins in<b> July&nbsp;2026<\/b> and is expected to complete by<b> late July 2026<\/b>.<\/li>\n<\/ul>\n<p><b>[How this affects your organization]<\/b><\/p>\n<p><i>Who is affected<\/i><\/p>\n<ul>\n<li>Meeting organizers and participants using <b>Microsoft Teams<\/b><\/li>\n<li>Microsoft 365 tenants<\/li>\n<\/ul>\n<p><i>What will happen<\/i><\/p>\n<ul>\n<li>Breakout rooms will be supported in meetings with<b> up to 1,000 attendees<\/b>.<\/li>\n<li>Organizers can create <b>up to 200 breakout rooms per meeting<\/b>.<\/li>\n<li>Organizers <b>no longer need to limit meeting size<\/b> to enable breakout rooms.<\/li>\n<li>The feature is <b>enabled by default <\/b>and respects existing Teams meeting policies.<\/li>\n<li>There is no change to the breakout room experience for meetings under the previous 300\u2011attendee limit.<\/li>\n<\/ul>\n<p><b>[What you can do to prepare]<\/b><\/p>\n<ul>\n<li>No action is required.<\/li>\n<li>Consider informing meeting organizers and training owners about the expanded breakout room capacity.<\/li>\n<li>Update any internal guidance or training materials that reference breakout room attendee limits.<\/li>\n<\/ul>\n<p><b>[Compliance considerations]<\/b><\/p>\n<p>No compliance considerations identified. Review as appropriate for your organization.<\/p>\n<\/td>\n<\/tr>\n<tr>\n<th>Machine Translation<\/th>\n<td>\n<p><b>[\u306f\u3058\u3081\u306b]<\/b><\/p>\n<p>Microsoft 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