{"id":16881,"date":"2026-06-16T04:01:21","date_gmt":"2026-06-15T19:01:21","guid":{"rendered":"https:\/\/m365jp.net\/?p=16881"},"modified":"2026-06-16T04:08:35","modified_gmt":"2026-06-15T19:08:35","slug":"servicerestored-ex1310533-exchange-online-users-may-be-unable-to-view-free-busy-status-for-gmail-users-within-the-exchange-online-calendar","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-06-16-servicerestored-ex1310533-exchange-online-users-may-be-unable-to-view-free-busy-status-for-gmail-users-within-the-exchange-online-calendar","title":{"rendered":"[serviceRestored] EX1310533 | Exchange Online | Users may be unable to view free\/busy status for Gmail users within the Exchange Online calendar"},"content":{"rendered":"
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EX1310533 | Exchange Online | Users may be unable to view free\/busy status for Gmail users within the Exchange Online calendar<\/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 view free\/busy status for Gmail users within the Exchange Online calendar.<\/td>\n<\/tr>\n
Last Updated<\/th>\n06\/15\/2026 18:01:01<\/td>\n<\/tr>\n
Start Time<\/th>\n05\/11\/2026 07:01:00<\/td>\n<\/tr>\n
End Time<\/th>\n06\/15\/2026 17:59:37<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Users may be unable to view free\/busy status for Gmail users within the Exchange Online calendar <\/p>\n

User impact: Users may have been unable to view free\/busy status for Gmail users within the Exchange Online calendar. <\/p>\n

More info: Affected users may have seen an “Unknown” status for the external Gmail contacts. <\/p>\n

Final status: We’ve received confirmation from additional users that were previously reporting this issue that our mitigation steps have successfully resolved this event. <\/p>\n

Scope of impact: Impact was specific to any user attempting to view free\/busy status for Gmail contacts in their Exchange Online calendars. <\/p>\n

Start time: Monday, May 11, 2026, at 7:01 AM UTC <\/p>\n

End time: Friday, June 12, 2026, at 10:00 AM UTC <\/p>\n

Root cause: Basic Authentication credentials weren\u2019t being correctly forwarded to the third-party service, resulting in failures when obtaining free\/busy status responses, which resulted in impact. <\/p>\n

Next steps: – We’re reviewing the flow of Basic Authentication credentials to better understand this impact and prevent similar future occurrences. <\/p>\n

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

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EX1310533 | Exchange Online | Users may be unable to view free\/busy status for Gmail users within the Exchange […]<\/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-16881","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/16881","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=16881"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/16881\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=16881"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=16881"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=16881"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}