{"id":17858,"date":"2026-08-14T06:01:06","date_gmt":"2026-08-13T21:01:06","guid":{"rendered":"https:\/\/m365jp.net\/?p=17858"},"modified":"2026-08-14T06:04:14","modified_gmt":"2026-08-13T21:04:14","slug":"servicerestored-ex1442253-exchange-online-users-may-be-unable-to-add-their-personal-google-or-gmail-calendars-in-outlook-on-the-web","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-08-14-servicerestored-ex1442253-exchange-online-users-may-be-unable-to-add-their-personal-google-or-gmail-calendars-in-outlook-on-the-web","title":{"rendered":"[serviceRestored] EX1442253 | Exchange Online | Users may be unable to add their personal Google or Gmail calendars in Outlook on the web"},"content":{"rendered":"
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EX1442253 | Exchange Online | Users may be unable to add their personal Google or Gmail calendars in Outlook on the web<\/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 add their personal Google or Gmail calendars in Outlook on the web.<\/td>\n<\/tr>\n
Last Updated<\/th>\n08\/13\/2026 20:17:31<\/td>\n<\/tr>\n
Start Time<\/th>\n02\/24\/2026 10:16:00<\/td>\n<\/tr>\n
End Time<\/th>\n08\/07\/2026 11:20:00<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Users may be unable to add their personal Google or Gmail calendars in Outlook on the web <\/p>\n

User impact: Users may have been unable to add their personal Google or Gmail calendars in Outlook on the web. <\/p>\n

More info: Affected users reported that they received a blank page when attempting to add their personal Google or Gmail calendars in Outlook on the web when navigating to Settings -> Calendar -> Accounts -> Google -> Add personal calendar. <\/p>\n

Final status: We’ve completed deployment of our fix to address a URL mismatch and validated both internally and with a subset of affected users that our actions successfully remediated impact. <\/p>\n

Scope of impact: Users attempting to add their personal Google or Gmail calendars in Outlook on the web may have been impacted. <\/p>\n

Start time: Tuesday, February 24, 2026, at 10:16 AM UTC <\/p>\n

End time: Friday, August 7, 2026, at 11:20 AM UTC <\/p>\n

Root cause: The URLs being utilized to issue the necessary authentication component to add Google or Gmail calendars in Outlook on the web didn’t match, resulting in authentication failing. <\/p>\n

Next steps:
– We’re validating how the URL mismatch was first introduced into our service to further our understanding of the impact scenario and to confirm what actions we can take to ensure similar impact scenarios don’t occur in the future. <\/p>\n

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

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\u958b\u59cb\u6642\u9593:2026\u5e742\u670824\u65e5\u706b\u66dc\u65e5 \u5348\u524d10\u664216\u5206 UTC <\/p>\n

\u7d42\u4e86\u6642\u523b:2026\u5e748\u67087\u65e5\u91d1\u66dc\u65e5 \u5348\u524d11\u664220\u5206 UTC <\/p>\n

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\u6b21\u306e\u30b9\u30c6\u30c3\u30d7:
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