Microsoft 365 Alert – Service Degradation – Microsoft 365 suite – Users and admins were unable to access Microsoft 365 services through Office.com – RESOLVED

09/03/2023 09:13:00 AM (GMT)

NHSmail Reference : INC34688167

Microsoft Reference : MO525043

Issue Status : RESOLVED

Issue Description : Users and admins were unable to access Microsoft 365 services through Office.com.

More Information : Users and admins were unable to access Microsoft 365 web applications through Office.com apps and tiles; however, navigating directly to the application would have been successful.

Users may have also experienced issues with navigational menus within Microsoft 365 apps, such as SharePoint Online and Microsoft Planner.

Final Update: 09/03/2023 09:13:00 AM – Microsoft have identified and reverted a recent service update that prevented users and admins from accessing Microsoft 365 services through Office.com apps and tiles, resulting in blank user interface or error messages; however, users and admins could successfully access Microsoft 365 web clients via direct navigation. Subsequent monitoring following this action confirms that Office.com application access has been restored.

Scope of impact : Any user or admin attempting to access Microsoft 365 services through Office.com could have been impacted by this event.

Root cause : A recent service update contained a conflicting software issue which caused the Office.com app and tile functionality to become unavailable to users.

Next steps : Microsoft are working to identify the source of the code issue within the offending update to prevent future occurrences of this impact.