Microsoft 365 Alert – Service Degradation – Exchange Online – Users may be unable to view rooms using Room Finder in the classic Outlook desktop client – RESOLVED

Announcements Sourav Nandi

21/02/2025 08:55:00 AM

NHSmail Reference: INC46456571

Microsoft Reference: EX1009639

Issue Status: RESOLVED

Issue Description: Users may be unable to view rooms using Room Finder in the classic Outlook desktop client.

More info: As a way to circumvent impact, users can view rooms in Room Finder in the new Outlook desktop client, Outlook on the web, or add additional filters when searching.

Final Update: 25/02/2025 08:40:00 AM – Following the deployment of Microsoft’s fix, they’ve confirmed with affected users that their reversion of the offending service update has successfully remediated the impact.

Scope of impact: Any user attempting to view rooms using Room Finder in Exchange Online may be impacted.

Root cause: A recent change aimed at addressing a service infrastructure level issue introduced an impacting code regression.

Next steps: Microsoft are further analyzing the offending service update and the affected service infrastructure, so they can help isolate similar issues during their pre-deployment testing and validations processes.