Outage in Veeam Data Cloud
Microsoft 365 backup failures affecting OneDrive, SharePoint, and Teams
Resolved Minor
October 13, 2026 - Started 2 days ago
- Lasted 1 day
Incident Report
Summary AI Generated
Veeam Data Cloud for Microsoft 365 experienced backup failures affecting OneDrive, SharePoint, and Teams for approximately 27.5 hours, with failed jobs returning an "Unknown Error." The root cause was traced to a recent change within Microsoft's services, confirmed by Microsoft Support. Veeam's engineering team engaged Microsoft to resolve the issue.
We are investigating backup failures affecting OneDrive, SharePoint, and Teams across Veeam Data Cloud for Microsoft 365. Affected backups may fail with an “Unknown Error.” Our engineering teams are working with Microsoft to mitigate this issue.
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Latest Updates ( sorted recent to last )
IDENTIFIED
1 day ago - at 10/13/2026 08:25PM
Our engineering team has engaged Microsoft Support, who confirmed that the backup failures are related to a recent change within Microsoft’s services. Microsoft is actively working to resolve the issue. We will provide another update when additional information becomes available.
INVESTIGATING
2 days ago - at 10/13/2026 06:06PM
We are investigating backup failures affecting OneDrive, SharePoint, and Teams across Veeam Data Cloud for Microsoft 365. Affected backups may fail with an “Unknown Error.” Our engineering teams are working with Microsoft to mitigate this issue.
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