Veeam Data Cloud Outage History

Veeam Data Cloud experienced authentication errors when backing up Exchange Online mailboxes, with users receiving "The HTTP request was forbidden with client authentication scheme 'Anonymous'" error messages. The issue was identified as related to Exchange Web Services (EWS) access restrictions. The problem was resolved by enabling EWS at both organization and mailbox levels, with customers who applied these configuration changes experiencing successful backups within 24 hours due to Microsoft 365 replication timing.

Veeam Data Cloud experienced an issue with Azure tenant management starting around 16:00 UTC on March 25, lasting 5.6 hours. All Azure customers were affected and encountered blank pages when trying to load tenant data after selecting a tenant to manage, requiring multiple page refreshes to recover. The issue has been resolved by Veeam engineers.

Veeam Data Cloud for Microsoft 365 experienced an issue with the Microsoft SharePoint & OneDrive API that caused some restored files to generate errors when opened with Microsoft Office applications. The incident lasted approximately 31 days, with a fix deployed on March 22 that stopped new errors from occurring, though some files backed up during the affected period continued to require remediation. The service has been stable since March 25, with ongoing work between Veeam and Microsoft to fully resolve all previously impacted scenarios.

Starting at 17:00 UTC on March 16th, Veeam Data Cloud experienced M365 backup failures affecting some customers in the APJ region for 13.3 hours. Engineers collaborated with Microsoft's support team to identify and resolve the underlying cause. The issue was classified as minor severity and has since been resolved.

Veeam Data Cloud experienced degraded performance for some AMER customers using M365 services starting around 21:00 UTC, causing issues with backup and restore operations. The engineering team actively worked to resolve the performance problems. The incident lasted 43 minutes before being resolved.