| EX1056704 | Exchange Online | Users may see a 503 error when starting Outlook (classic) in online mode or utilizing the Exchange admin center (EAC) |
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| Status | serviceDegradation |
|---|---|
| Classification | advisory |
| User Impact | Users may see a 503 error when starting Outlook (classic) in online mode or utilizing the EAC. |
| Last Updated | 04/25/2025 12:13:46 |
| Start Time | 04/02/2025 04:29:00 |
| End Time | |
| Latest Message | Title: Users may see a 503 error when starting Outlook (classic) in online mode or utilizing the Exchange admin center (EAC)
User impact: Users may see a 503 error when starting Outlook (classic) in online mode or utilizing the EAC. Title: Users may see a 503 error when starting Outlook (classic) in online mode or utilizing the Exchange admin center (EAC) User impact: Users may see a 503 error when starting Outlook (classic) in online mode or utilizing the EAC. More info: Some users intermittently may be unable to start Outlook (classic) when in working online mode and encounter the following error: “HTTP 503 Service Unavailable.” Additionally, when attempting to complete operations in the Exchange admin center (EAC), admins are returned a “503 Service Unavailable” error. Current status: We’re continuing our review of call stack logs related to the workload management module and suitability verifier in the directory layer, to identify the root cause before formulating a plan for remediation. We’re also analyzing connectivity issues and high latency in provisioning handler calls, and its impact on service performance. Scope of impact: Any user who attempts to start Outlook (classic) when working in online mode or utilize the EAC may be impacted by this event. Start time: Monday, April 14, 2025, at 12:00 AM UTC Next update by: Friday, April 25, 2025, at 2:30 PM UTC |