Microsoft Investigates Microsoft 365 Copilot Service Access Disruption

Microsoft is investigating a Microsoft 365 Copilot availability incident tracked as CP1470554. Affected users may be unable to open Copilot or may receive errors while accessing or interacting with the service, including through Copilot-integrated Microsoft 365 applications.

Microsoft had not disclosed the root cause, affected regions, or an estimated recovery time. The company has not identified the incident as a breach or cyberattack; tenant administrators should monitor the Microsoft 365 admin center Service Health Dashboard and avoid unnecessary endpoint, credential, or client-configuration changes while the cloud-service disruption remains active.