Datto incident
Datto SaaS Protection - Backup performance degradation for some M365 services on Multiple Pods
Datto experienced a major incident on August 3, 2026 affecting SaaS Protection Backups, lasting 2d 10h. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- identified Aug 03, 2026, 09:12 AM UTC
We are aware of an issue where some Datto SaaS Protection customers may experience degraded backup performance for Exchange and Teams services. The Kaseya R&D team has identified the issue and is actively working to restore normal backup performance as quickly as possible. For the latest updates, please subscribe to the Kaseya Status Page at https://status.kaseya.com/.
- identified Aug 03, 2026, 12:31 PM UTC
We are continuing to work on a fix for this issue.
- monitoring Aug 03, 2026, 01:30 PM UTC
Our R&D team has released a fix to address the backup performance degradation for some M365 services affecting customers hosted in multiple regions and they are closely monitoring.
- identified Aug 03, 2026, 02:46 PM UTC
Our R&D team is continuing to address the backup performance issues affecting some M365 services on multiple SaaS Protection pods. In the meantime, they are preparing to temporarily reduce backup cadence on affected pods from 3x backups per day to 2x backups per day to help stabilize backup success rates in all affected regions.
- identified Aug 03, 2026, 03:33 PM UTC
Our R&D team continues to address backup performance issues affecting some Microsoft 365 services across multiple SaaS Protection pods following the transition from EWS to Microsoft Graph APIs. To help stabilize backup success rates and reduce API throttling during this migration, backup cadence on affected pods will be temporarily reduced from 3x backups per day to 2x backups per day.
- identified Aug 03, 2026, 05:34 PM UTC
Our R&D team has begun deployment of the changes to reduce backup cadence on affected SaaS Protection pods across all regions to 2x backups per day to help stabilize backup success rates further. This change is expected to complete deployment by 20:00 ET (00:00 UTC). Our R&D team is continuing to closely monitor backup performance as these additional changes are implemented.
- identified Aug 03, 2026, 08:05 PM UTC
Our R&D team is continuing to deploy the configuration changes to adjust backup frequency from 3x backups per day to 2x backups per day on SaaS Protection pods in all regions and we are continuing to closely monitor backup success rate metrics.
- identified Aug 03, 2026, 09:52 PM UTC
Our R&D team has completed deployment of the configuration changes to SaaS Protection pods in all regions. Daily backup cadence is now temporarily set to 2x backups per day across the fleet to reduce API throttling and help stabilize backup success rate metrics during the transition from EWS to Microsoft Graph APIs. Our R&D team is closely monitoring the effects of the changes and expect backup success rates to begin stabilizing over the next several hours.
- identified Aug 04, 2026, 02:29 PM UTC
After the changes made yesterday, we have observed some improvement to backup success rates however backups are currently still degraded for some M365 services across multiple regions due to API throttling related to the transition from EWS to Microsoft Graph APIs. Our R&D team is continuing to develop additional improvements to address the backup performance issues.
- identified Aug 04, 2026, 05:26 PM UTC
Our R&D team is currently implementing configuration changes in multiple regions to further mitigate the degraded backup performance still affecting some customers. We will be closely monitoring the results of these changes as we continue to develop additional improvements to accelerate recovery for affected customers.
- identified Aug 04, 2026, 08:09 PM UTC
The latest changes have been deployed to SaaS Protection pods in multiple regions still experiencing backup performance issues. Our R&D team is continuing to monitor as backup success rate metrics improve across the fleet.
- identified Aug 05, 2026, 02:02 PM UTC
Significant improvement to backup success rate metrics has been observed across all regions after the latest changes were implemented. Our R&D team is continuing to deploy configuration changes to further stabilize backup performance in all regions. Backup success rates will continue to be closely monitored as the team is actively working to develop additional improvements to address the API throttling related to the transition from EWS to Microsoft Graph APIs currently in progress.