{"id":18084,"date":"2026-08-26T15:01:14","date_gmt":"2026-08-26T06:01:14","guid":{"rendered":"https:\/\/m365jp.net\/?p=18084"},"modified":"2026-08-26T15:06:04","modified_gmt":"2026-08-26T06:06:04","slug":"servicedegradation-sp1461217-sharepoint-online-guest-users-are-unable-to-access-sharepoint-online-sites-connected-to-microsoft-teams-5","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-08-26-servicedegradation-sp1461217-sharepoint-online-guest-users-are-unable-to-access-sharepoint-online-sites-connected-to-microsoft-teams-5","title":{"rendered":"[serviceDegradation] SP1461217 | SharePoint Online | Guest users are unable to access SharePoint Online sites connected to Microsoft Teams"},"content":{"rendered":"
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SP1461217 | SharePoint Online | Guest users are unable to access SharePoint Online sites connected to Microsoft Teams<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n\n
Status<\/th>\nserviceDegradation<\/td>\n<\/tr>\n
Classification<\/th>\nincident<\/td>\n<\/tr>\n
User Impact<\/th>\nGuest users are unable to access SharePoint Online sites connected to Microsoft Teams.<\/td>\n<\/tr>\n
Last Updated<\/th>\n08\/26\/2026 05:45:51<\/td>\n<\/tr>\n
Start Time<\/th>\n08\/25\/2026 01:58:05<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Guest users are unable to access SharePoint Online sites connected to Microsoft Teams <\/p>\n

User impact: Guest users are unable to access SharePoint Online sites connected to Microsoft Teams. <\/p>\n

More info: Specifically, guest users are redirected to an AccessDenied.aspx page when attempting to access SharePoint Online sites where access is granted through Microsoft 365 Groups.<\/p>\n

As a potential workaround, admins can manually add affected guest users directly to the SharePoint Members group instead of relying on Microsoft 365 Group membership propagation. <\/p>\n

Current status: We’re continuing to engage in extended monitoring while we work with reporting organizations to confirm that the issue is fully resolved. If your organization has reported this problem, we request that you follow-up with the support case owner so we can confirm that the impact has been remediated. <\/p>\n

Scope of impact: This issue could impact any guest users attempting to access SharePoint Online sites where access is granted through Microsoft 365 Groups. <\/p>\n

Start time: Thursday, August 20, 2026, at 7:30 AM UTC <\/p>\n

Root cause: A recently deployed change interacted with dynamic claims process, causing impact. <\/p>\n

Next update by: Wednesday, August 26, 2026, at 9:30 AM UTC<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb:\u30b2\u30b9\u30c8\u30e6\u30fc\u30b6\u30fc\u306fMicrosoft Teams\u306b\u63a5\u7d9a\u3055\u308c\u305fSharePoint Online\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093 <\/p>\n

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\u8a73\u7d30\u60c5\u5831:\u5177\u4f53\u7684\u306b\u306f\u3001\u30b2\u30b9\u30c8\u30e6\u30fc\u30b6\u30fc\u306fMicrosoft 365\u30b0\u30eb\u30fc\u30d7\u7d4c\u7531\u3067\u30a2\u30af\u30bb\u30b9\u304c\u8a8d\u3081\u3089\u308c\u308bSharePoint Online\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001AccessDenied.aspx\u30da\u30fc\u30b8\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3055\u308c\u307e\u3059\u3002<\/p>\n

\u56de\u907f\u7b56\u3068\u3057\u3066\u3001\u7ba1\u7406\u8005\u306fMicrosoft 365\u306e\u30b0\u30eb\u30fc\u30d7\u30e1\u30f3\u30d0\u30fc\u30b7\u30c3\u30d7\u4f1d\u64ad\u306b\u983c\u3089\u305a\u3001\u5f71\u97ff\u3092\u53d7\u3051\u305f\u30b2\u30b9\u30c8\u30e6\u30fc\u30b6\u30fc\u3092\u76f4\u63a5SharePoint Members\u30b0\u30eb\u30fc\u30d7\u306b\u8ffd\u52a0\u3067\u304d\u307e\u3059\u3002 <\/p>\n

\u73fe\u72b6:\u5831\u544a\u7d44\u7e54\u3068\u9023\u643a\u3057\u306a\u304c\u3089\u3001\u554f\u984c\u304c\u5b8c\u5168\u306b\u89e3\u6c7a\u3055\u308c\u305f\u304b\u78ba\u8a8d\u3059\u308b\u307e\u3067\u3001\u7d99\u7d9a\u7684\u306a\u76e3\u8996\u3092\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002\u3082\u3057\u8cb4\u7d44\u7e54\u304c\u3053\u306e\u554f\u984c\u3092\u5831\u544a\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u30b5\u30dd\u30fc\u30c8\u30b1\u30fc\u30b9\u306e\u62c5\u5f53\u8005\u306b\u30d5\u30a9\u30ed\u30fc\u30a2\u30c3\u30d7\u3057\u3001\u5f71\u97ff\u304c\u662f\u6b63\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3059\u308b\u3088\u3046\u304a\u9858\u3044\u3057\u307e\u3059\u3002 <\/p>\n

\u5f71\u97ff\u7bc4\u56f2:\u3053\u306e\u554f\u984c\u306f\u3001Microsoft 365\u30b0\u30eb\u30fc\u30d7\u3092\u901a\u3058\u3066\u30a2\u30af\u30bb\u30b9\u304c\u8a31\u53ef\u3055\u308c\u3066\u3044\u308bSharePoint Online\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3059\u308b\u30b2\u30b9\u30c8\u30e6\u30fc\u30b6\u30fc\u306b\u5f71\u97ff\u3092\u53ca\u307c\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n

\u958b\u59cb\u6642\u9593:2026\u5e748\u670820\u65e5\u6728\u66dc\u65e5 \u5348\u524d7\u664230\u5206 UTC <\/p>\n

\u6839\u672c\u539f\u56e0:\u6700\u8fd1\u5c0e\u5165\u3055\u308c\u305f\u5909\u66f4\u304c\u52d5\u7684\u8acb\u6c42\u30d7\u30ed\u30bb\u30b9\u3068\u76f8\u4e92\u4f5c\u7528\u3057\u3001\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3057\u305f\u3002 <\/p>\n

\u6b21\u56de\u66f4\u65b0:2026\u5e748\u670826\u65e5\u6c34\u66dc\u65e5 \u5348\u524d9\u664230\u5206 UTC<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

SP1461217 | SharePoint Online | Guest users are unable to access SharePoint Online sites connected to Microsof […]<\/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-18084","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/18084","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=18084"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/18084\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=18084"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=18084"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=18084"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}