Microsoft 365 Alert – Service Degradation – Microsoft Copilot (Microsoft 365) – Users may be unable to manage custom Microsoft Graph connectors in Microsoft 365 Copilot – RESOLVED

Announcements Arpan Das

07/07/2026 09:32:00 AM

NHS.net Connect Reference: INC46871391

Microsoft Reference: CP1412506

Issue Status: RESOLVED

Issue Description: Users may be unable to manage custom Microsoft Graph connectors in Copilot.

More info: Affected users are unable to open or edit connectors as crawl attempts fail with error 1015 and 3191.

Final Update: 09/07/2026 09:03:00 AM – Microsoft has confirmed that a recent update to the service introduced an issue where the connector details weren’t fully loaded when users made an edit to the custom connector. They created a code correction to ensure connector details are loaded correctly and confirmed with some previously reporting users that the issue is resolved after monitoring service health for an extended period of time.

Scope of impact: Impact is specific to some users attempting to manage custom Microsoft Graph connectors in Microsoft 365 Copilot.

Next Steps: Microsoft is reviewing their testing procedures to determine how this wasn’t identified prior to deployment and why the connector details were incomplete so they can prevent similar issues from recurring in future updates.