Microsoft 365 Connector Issues Affect ChatGPT and Claude Integrations

Microsoft 365 connector problems are affecting ChatGPT and Claude integrations, disrupting new connection attempts and some requests to workplace services such as email and calendars.

New Microsoft 365 connections in ChatGPT may fail, and its connector tools may not work as expected. Requests through Claude’s Microsoft 365 connector may fail when they involve mail, SharePoint, Teams chat or calendar. Later, most mail, calendar and search requests through Claude’s connector were failing.

These connections let the assistants access information through Microsoft 365. The reported problems involve connection setup and requests made through the connectors.

Microsoft’s broader investigation has focused on automated server health checks and configuration changes after servers went offline and service load rose. Some servers were removed from service after failing health checks, increasing demand on systems that remained active. The company is still investigating what caused the automated checks to fail. The wider disruption has also affected email, meetings and cloud files, and its connector problems extend to third-party AI integrations. Read Microsoft’s investigation into failed server health checks.