{"id":18056,"date":"2026-08-25T21:01:28","date_gmt":"2026-08-25T12:01:28","guid":{"rendered":"https:\/\/m365jp.net\/?p=18056"},"modified":"2026-08-25T21:09:46","modified_gmt":"2026-08-25T12:09:46","slug":"servicedegradation-sp1461217-sharepoint-online-guest-users-are-unable-to-access-sharepoint-online-sites-connected-to-microsoft-teams","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-08-25-servicedegradation-sp1461217-sharepoint-online-guest-users-are-unable-to-access-sharepoint-online-sites-connected-to-microsoft-teams","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\/25\/2026 11:47:47<\/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 our analysis of the network trace logs to help isolate why permissions that should grant access are not being correctly applied or recognized. This analysis will help us identify the underlying cause of the access issues and determine the appropriate remediation steps.<\/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. This information may be updated as our investigation continues.<\/p>\n

Next update by: Tuesday, August 25, 2026, at 1:00 PM 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

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff:\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\u3002<\/p>\n

\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:\u30a2\u30af\u30bb\u30b9\u6a29\u9650\u304c\u6b63\u3057\u304f\u9069\u7528\u307e\u305f\u306f\u8a8d\u8b58\u3055\u308c\u3066\u3044\u306a\u3044\u7406\u7531\u3092\u7279\u5b9a\u3059\u308b\u305f\u3081\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30ec\u30fc\u30b9\u30ed\u30b0\u306e\u5206\u6790\u3092\u7d99\u7d9a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u5206\u6790\u306b\u3088\u308a\u3001\u30a2\u30af\u30bb\u30b9\u554f\u984c\u306e\u6839\u672c\u539f\u56e0\u3092\u7279\u5b9a\u3057\u3001\u9069\u5207\u306a\u662f\u6b63\u63aa\u7f6e\u3092\u6c7a\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\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\u8abf\u67fb\u304c\u9032\u3080\u306b\u3064\u308c\u3066\u3001\u3053\u306e\u60c5\u5831\u306f\u66f4\u65b0\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u6b21\u56de\u66f4\u65b0:2026\u5e748\u670825\u65e5\u706b\u66dc\u65e5 \u5348\u5f8c1\u6642 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-18056","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/18056","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=18056"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/18056\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=18056"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=18056"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=18056"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}