Microsoft 365 Alert – Service Degradation – Microsoft 365 suite, Exchange Online, Microsoft Teams – Some organizers may see that mandatory labeling isn’t applying when creating new meetings using the Quick Compose pop-up – RESOLVED

17/11/2025 09:22:00 AM

NHSmail Reference: INC46683108

Microsoft Reference: MO1186276

Issue Status: RESOLVED

Issue Description: Organizers may see that mandatory labeling isn’t applying when creating new meetings using the Quick Compose pop-up.

More info: Impact is to meetings created using the Microsoft Teams calendar and Outlook on the web using the Quick Compose pop-up. Additionally, impact is specific to admins who have a policy applied where sensitivity labels are mandatory, and there’s no default label configured.

Attendees will see that there’s no sensitivity label applied, but they can still access and attend the meeting without complications. Users with access to the Outlook desktop client cans use that method to avoid this issue.

Final Update: 25/11/2025 08:40:00 AM – Microsoft have confirmed that the issue is resolved following the deployment of the fix.

Scope of impact: Scope of impact: Some organizers who are creating meetings using the Quick Compose pop-up in Microsoft Teams calendar and Outlook on the web may be impacted.

Next update by: Monday, November 24, 2025, at 12:30 PM UTC