{"id":18333,"date":"2026-09-04T01:03:57","date_gmt":"2026-09-03T16:03:57","guid":{"rendered":"https:\/\/m365jp.net\/?p=18333"},"modified":"2026-09-04T01:06:49","modified_gmt":"2026-09-03T16:06:49","slug":"servicerestored-tm1466441-microsoft-teams-users-may-be-unable-to-access-tabs-beyond-the-conversation-tab-in-certain-microsoft-teams-channels","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-09-04-servicerestored-tm1466441-microsoft-teams-users-may-be-unable-to-access-tabs-beyond-the-conversation-tab-in-certain-microsoft-teams-channels","title":{"rendered":"[serviceRestored] TM1466441 | Microsoft Teams | Users may be unable to access tabs beyond the Conversation tab in certain Microsoft Teams channels"},"content":{"rendered":"
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TM1466441 | Microsoft Teams | Users may be unable to access tabs beyond the Conversation tab in certain Microsoft Teams channels<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n\n
Status<\/th>\nserviceRestored<\/td>\n<\/tr>\n
Classification<\/th>\nadvisory<\/td>\n<\/tr>\n
User Impact<\/th>\nUsers may have been unable to access tabs beyond the Conversation tab in certain Microsoft Teams channels.<\/td>\n<\/tr>\n
Last Updated<\/th>\n09\/03\/2026 15:49:45<\/td>\n<\/tr>\n
Start Time<\/th>\n08\/18\/2026 13:30:00<\/td>\n<\/tr>\n
End Time<\/th>\n09\/03\/2026 15:48:47<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Users may be unable to access tabs beyond the Conversation tab in certain Microsoft Teams channels <\/p>\n

User impact: Users may have been unable to access tabs beyond the Conversation tab in certain Microsoft Teams channels. <\/p>\n

More info: Users may have only see the Conversation tab in Microsoft Teams channels when channel names and associated sensitivity labels were long, particularly on smaller displays. As a result, other tabs such as Shared, Files, Notes, and custom tabs may have not been visible.<\/p>\n

As a workaround, impacted users could zoom out in Teams, use a larger display where available, or, in some cases, select the overflow arrow to access hidden tabs. <\/p>\n

Final status: We’ve confirmed through testing with a subset of affected users that reverting the recent configuration change has remediated the impact. <\/p>\n

Scope of impact: Any user attempting to access tabs beyond the Conversation tab in Microsoft Teams channels with long channel names and\/or associated sensitivity labels may have been impacted. <\/p>\n

Start time: Tuesday, August 18, 2026, at 1:30 PM UTC <\/p>\n

End time: Thursday, September 3, 2026, at 1:46 PM UTC <\/p>\n

Root cause: A recent configuration change associated with a user interface modernization effort inadvertently introduced a regression that was preventing Teams channel tabs from rendering correctly. <\/p>\n

Next steps:
– We’re reviewing the offending configuration change to understand why the regression wasn’t identified during our pre-deployment testing processes, so that we can prevent similar issues from occurring in the future. <\/p>\n

This is the final update for the event.<\/td>\n<\/tr>\n

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\u6700\u7d42\u72b6\u6cc1:\u5f71\u97ff\u3092\u53d7\u3051\u305f\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u3068\u306e\u30c6\u30b9\u30c8\u306b\u3088\u308a\u3001\u6700\u8fd1\u306e\u8a2d\u5b9a\u5909\u66f4\u3092\u5143\u306b\u623b\u3057\u305f\u3053\u3068\u3067\u5f71\u97ff\u304c\u56de\u5fa9\u3057\u305f\u3053\u3068\u304c\u78ba\u8a8d\u3055\u308c\u307e\u3057\u305f\u3002 <\/p>\n

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\u958b\u59cb\u6642\u9593:2026\u5e748\u670818\u65e5\u706b\u66dc\u65e5 13:30 UTC <\/p>\n

\u7d42\u4e86\u6642\u523b:2026\u5e749\u67083\u65e5\u6728\u66dc\u65e5 13:46 UTC <\/p>\n

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\u6b21\u306e\u30b9\u30c6\u30c3\u30d7:
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TM1466441 | Microsoft Teams | Users may be unable to access tabs beyond the Conversation tab in certain Micros […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-18333","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/18333","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/comments?post=18333"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/18333\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=18333"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=18333"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=18333"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}