Service issues › EX1237864

Users' auto-decline meeting settings for automatic replies may not be working in Exchange Online

Resolved Exchange Online Outlook - poor customer experience advisory
Started
23 Feb 2026 08:00 UTC
Resolved
06 Mar 2026 18:00 UTC
Status
serviceRestored
Origin
microsoft

Timeline & resolution

06 Mar 2026 20:29 UTC · regular

Title: Users' auto-decline meeting settings for automatic replies may not be working in Exchange Online User impact: Users' auto-decline meeting settings for automatic replies may have not been working in Exchange Online. Final status: We've completed the deployment of our code fix and confirmed it has saturated throughout the affected environment, remediating impact for all users. Scope of impact: Users with automatic replies set up to auto-decline meeting invites in Exchange Online may have been impacted. Start time: Monday, February 23, 2026, at 8:00 AM UTC End time: Friday, March 6, 2026, at 6:00 PM UTC Root cause: A latent code issue triggered by a recent service configuration update was resulting in impact. Next steps: - We're reviewing our update testing and validation procedures to identify opportunities to better detect impact and prevent similar future occurrences. This is the final update for the event.

02 Mar 2026 22:55 UTC · regular

Title: Users' auto-decline meeting settings for automatic replies may not be working in Exchange Online User impact: Users' auto-decline meeting settings for automatic replies may not be working in Exchange Online. Current status: Our code fix continues to roll out and has saturated approximately 93% of the environment, and some users may already see mitigation of this issue. At our next communication, which is when we estimate this deployment will conclude, we'll provide an additional update regarding the status of the code fix saturation to all affected users. Scope of impact: Users with automatic replies set up to auto-decline meeting invites in Exchange Online may be impacted. This information may be updated as our investigation continues. Start time: Monday, February 23, 2026, at 8:00 AM UTC Root cause: A latent code issue triggered by a recent service configuration update is resulting in impact. Next update by: Friday, March 6, 2026, at 10:30 PM UTC

24 Feb 2026 02:23 UTC · regular

Title: Users' auto-decline meeting settings for automatic replies may not be working in Exchange Online User impact: Users' auto-decline meeting settings for automatic replies may not be working in Exchange Online. Current status: We've identified through internal monitoring that users' auto-decline meeting settings may be failing to apply, resulting in users' incoming meeting invites not being auto-declined as expected due to a latent code issue triggered by a recent service configuration update. We're working to roll out a code fix that we anticipate should be in effect by our next scheduled update. Scope of impact: Users with automatic replies set up to auto-decline meeting invites in Exchange Online may be impacted. This information may be updated as our investigation continues. Start time: Monday, February 23, 2026, at 8:00 AM UTC Root cause: A latent code issue triggered by a recent service configuration update is resulting in impact. Next update by: Tuesday, March 3, 2026, at 12:30 AM UTC

24 Feb 2026 02:10 UTC · regular

Title: Users' auto-decline meeting settings for automatic replies may not be working in Exchange Online User impact: Users' auto-decline meeting settings for automatic replies may not be working in Exchange Online. Current status: We're investigating a potential issue with Exchange Online and checking for impact to your organization. We'll provide an update within 30 minutes.

Source: Microsoft 365 service health.