{"id":17717,"date":"2026-08-06T07:01:31","date_gmt":"2026-08-05T22:01:31","guid":{"rendered":"https:\/\/m365jp.net\/?p=17717"},"modified":"2026-08-06T07:04:30","modified_gmt":"2026-08-05T22:04:30","slug":"servicerestored-mo1440526-microsoft-365-suite-some-users-may-be-unable-to-share-files-with-external-recipients-through-sharepoint-online-and-microsoft-onedrive","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-08-06-servicerestored-mo1440526-microsoft-365-suite-some-users-may-be-unable-to-share-files-with-external-recipients-through-sharepoint-online-and-microsoft-onedrive","title":{"rendered":"[serviceRestored] MO1440526 | Microsoft 365 suite | Some users may be unable to share files with external recipients through SharePoint Online and Microsoft OneDrive"},"content":{"rendered":"
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MO1440526 | Microsoft 365 suite | Some users may be unable to share files with external recipients through SharePoint Online and Microsoft OneDrive<\/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 share files with external recipients through SharePoint Online and OneDrive.<\/td>\n<\/tr>\n
Last Updated<\/th>\n08\/05\/2026 21:35:21<\/td>\n<\/tr>\n
Start Time<\/th>\n07\/23\/2026 00:26:00<\/td>\n<\/tr>\n
End Time<\/th>\n08\/05\/2026 20:53:46<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Some users may be unable to share files with external recipients through SharePoint Online and Microsoft OneDrive <\/p>\n

User impact: Users may have been unable to share files with external recipients through SharePoint Online and OneDrive. <\/p>\n

More info: Affected users were unable to send external sharing invitations from SharePoint Online sites and OneDrive locations, despite external sharing being enabled at both the tenant and site levels. Upon failure, affected users encountered the following error: “That didn’t work: We couldn’t find a valid SharePoint Online license…”<\/p>\n

While we worked to remediate the impact from this event, impacted organizations were able to bypass the impact in one of the following two ways:<\/p>\n

1) Create a support case and contact Microsoft to request that “Unlicensed User Access” be enabled for their tenant.<\/p>\n

2) Admins within the affected organizations could have assigned any license that included the SharePoint Online service to the external users they were attempting to share with to bypass the impact for those users.<\/p>\n

Admins that made any licensing changes during this event should work with support representatives for any further assistance. <\/p>\n

Final status: Our extended service monitoring has validated that our roll back of the recent change has remediated the impact. <\/p>\n

Scope of impact: Some users who attempted to share files with external recipients through SharePoint Online and OneDrive were impacted. <\/p>\n

Start time: Thursday, July 23, 2026, at 12:26 AM UTC <\/p>\n

End time: Wednesday, July 29, 2026, at 7:13 PM UTC <\/p>\n

Root cause: Organizations that requested we turn off Unlicensed User Access for their organization encountered this problem after OTP deprecation and unlicensed user check in the external sharing code became enforced. <\/p>\n

Next steps:
– We’re further analyzing our deprecation processes in our effort to prevent similar problems in the future.<\/p>\n

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

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1) \u30b5\u30dd\u30fc\u30c8\u30b1\u30fc\u30b9\u3092\u4f5c\u6210\u3057\u3001Microsoft\u306b\u9023\u7d61\u3057\u3066\u30c6\u30ca\u30f3\u30c8\u306b\u5bfe\u3057\u3066\u300cUnlicensed User Access\u300d\u3092\u6709\u52b9\u306b\u3059\u308b\u3088\u3046\u4f9d\u983c\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

2) \u5f71\u97ff\u3092\u53d7\u3051\u305f\u7d44\u7e54\u5185\u306e\u7ba1\u7406\u8005\u306f\u3001SharePoint Online\u30b5\u30fc\u30d3\u30b9\u3092\u542b\u3080\u30e9\u30a4\u30bb\u30f3\u30b9\u3092\u5916\u90e8\u30e6\u30fc\u30b6\u30fc\u306b\u5272\u308a\u5f53\u3066\u3001\u305d\u306e\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff\u3092\u56de\u907f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n

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\u5f71\u97ff\u7bc4\u56f2:SharePoint Online\u3084OneDrive\u3092\u901a\u3058\u3066\u5916\u90e8\u53d7\u4fe1\u8005\u3068\u30d5\u30a1\u30a4\u30eb\u5171\u6709\u3092\u8a66\u307f\u305f\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u5f71\u97ff\u3092\u53d7\u3051\u307e\u3057\u305f\u3002 <\/p>\n

\u958b\u59cb\u6642\u9593:2026\u5e747\u670823\u65e5\u6728\u66dc\u65e5 0:26 UTC <\/p>\n

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\u6b21\u306e\u30b9\u30c6\u30c3\u30d7:
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MO1440526 | Microsoft 365 suite | Some users may be unable to share files with external recipients through Sha […]<\/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-17717","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/17717","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=17717"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/17717\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=17717"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=17717"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=17717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}