Microsoft 365 Alert – Service Degradation – Exchange Online – Some users may be intermittently unable to see the Claude model option for Microsoft 365 Copilot in Microsoft Teams – NEW

Announcements Shagufta Naaz

06/08/2026 08:47:00 AM

NHS.net Connect Reference: INC46901830

Microsoft Reference: EX1442253

Issue Status: OPEN

Issue Description: Users may be unable to add their personal Google or Gmail calendars in Outlook on the web.

More info: Affected users may report that they receive 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.

Current Update: 06/08/2026 08:31:00 AM – Microsoft can confirm that their fix has been deployed and has saturated 30 percent of the affected environment. They will continue to monitor as the fix progresses to ensure the impact is fully remediated.

Scope of impact: Users attempting to add their personal Google or Gmail calendars in Outlook on the web may be impacted. This section may be updated as our investigation progresses.

Root cause: The URLs being utilised to issue the necessary authentication component to add Google or Gmail calendars in Outlook on the web don’t match, resulting in authentication failing.

Next update by: Thursday, August 13, 2026, at 10:00 PM UTC