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Outage in Kaseya

Datto SaaS Protection - Backup performance degradation for some M365 services on Multiple Pods

Resolved Major
August 03, 2026 - Started 3 days ago - Lasted 2 days
Official incident page

Incident Report

Summary AI Generated

Datto SaaS Protection experienced degraded M365 backup performance across six global regions (AUE, CAE, DES, GBE, SG, USE) for approximately 58.5 hours due to API throttling triggered by an ongoing migration from EWS to Microsoft Graph APIs. As a mitigation, backup frequency was temporarily reduced from 3x to 2x per day fleet-wide to stabilize success rates while configuration changes were deployed across affected pods. Backup performance progressively improved following multiple rounds of configuration updates, with significant recovery observed across all regions by August 5th.

We are aware of an issue where some Datto SaaS Protection customers across multiple regions may experience degraded backup performance for some M365 services. Affected regions: AUE CAE DES GBE SG USE 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/.

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Latest Updates ( sorted recent to last )
IDENTIFIED about 12 hours ago - at 08/05/2026 02:02PM

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.

IDENTIFIED 1 day ago - at 08/04/2026 08:09PM

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 1 day ago - at 08/04/2026 05:26PM

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 1 day ago - at 08/04/2026 02:29PM

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 2 days ago - at 08/03/2026 09:52PM

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 2 days ago - at 08/03/2026 08:05PM

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 2 days ago - at 08/03/2026 05:34PM

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 2 days ago - at 08/03/2026 03:33PM

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 2 days ago - at 08/03/2026 02:46PM

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.

MONITORING 3 days ago - at 08/03/2026 01:30PM

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 3 days ago - at 08/03/2026 12:31PM

We are continuing to work on a fix for this issue.

IDENTIFIED 3 days ago - at 08/03/2026 09:12AM

We are aware of an issue where some Datto SaaS Protection customers across multiple regions may experience degraded backup performance for some M365 services.

Affected regions:
AUE
CAE
DES
GBE
SG
USE

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/.

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