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Claude Microsoft 365 Connector Errors: Status Page Reports Incident on Nov. 12

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Claude’s status page reported elevated errors and slow responses affecting the Microsoft 365 connector, an incident first posted at 12:52 p.m. ET (17:52 UTC) on Nov. 12. As of Nov. 12 at 1:10 p.m. ET (18:10 UTC), the page listed the incident as investigating and showed an overall status of “Minor Service Outage.”

What the status page says

The status page rated the incident’s severity as major. Its latest update said requests to mail, SharePoint, Teams chat and calendar through the connector may fail, and that new connections to the connector may not complete. The page said another update would follow as soon as possible.

A connector links Claude to an outside service so it can work with data held there. The status page marked claude.ai as the part of the service that was not fully operational. It did not state a cause, how many users were affected or when a fix would arrive.

What our checks show

At the time of the data, the front page of claude.ai answered from both of Outages Now’s checkpoints in Germany, with a fastest response of 55 ms, according to Outages Now’s data. The checkpoints only test whether the public website responds. They cannot see log-in, payments, messages or anything inside the apps, so a loading front page says nothing about whether the connector worked. Outages Now’s live Claude status page tracks the service over time.

Recent incidents

The same status page listed several earlier incidents in the past 30 days. On Nov. 8 it posted degraded performance for Claude Fable 5.1, rated minor. On Oct. 28 it listed elevated errors affecting the Google Calendar connector and, separately, the Gmail connector, both rated minor. On Oct. 27 it listed elevated errors for Claude Sonnet 5.5, rated major.

Why it matters

People who use Claude with Microsoft 365 mail, SharePoint, Teams chat or calendar were the ones named in the status page’s update. Anyone who saw failed requests or a connection that would not finish had an official explanation to point to. The official status page is the first place to check for updates. When the app fails and the status page shows an incident, waiting is usually the fix, and resetting a password or reinstalling the app is best avoided while the company says it is working on the problem.

For other kinds of Claude trouble, such as usage limits or capacity errors, see our guide to Claude outages and error messages.

Source: Claude status page, as of Nov. 12 at 1:10 p.m. ET (18:10 UTC), and Outages Now’s own checks. This article is a snapshot and is not updated: see the live status of Claude for the current data.