Status Page

O365 - Teams

2026-03-18	Status	Description
03:51 PM		Title: Some users may see Teams meeting invitations are being received as “not supported calendar message.ics" Current status: Our analysis of the reproductions of impact provided by affected users has been inconclusive thus far in identifying the issue, although additional evaluation is needed of the reproduction examples and logs supplied. We're also determining what correlating service side logs may be needed to assist in this process. Scope of impact: This incident impacts using receiving Teams meeting invitations who may see the invitation as a “not supported calendar message.ics" attachment. This information may be updated as our investigation continues. Next update by: Wednesday, March 18, 2026, at 2:30 PM AST
12:36 PM		Title: Some users may be unable to utilize spell check in Teams desktop client User impact: Users may have been unable to utilize spell check in Teams desktop client. Final status: We've reverted the offending code change and confirmed with affected users that impact is remediated after they restarted their Teams desktop client. This confirms that the offending change intended for general service optimizations contained a code issue that resulted in impact. Scope of impact: This issue may have affected some users utilizing the Teams desktop client on Windows devices. Start time: Tuesday, March 10, 2026, at 11:48 AM AST End time: Monday, March 16, 2026, at 6:28 PM AST Root cause: A recent code deployment intended for general service optimizations contained a code issue that resulted in impact.