Microsoft 365 Alert – Service Degradation – Power BI – Users saw delays up to three hours executing data factory activities in Microsoft Fabric – RESOLVED

15/04/2026 08:45:00 AM

NHSmail Reference: INC46799346

Microsoft Reference: PB1279675

Issue Status: RESOLVED

Issue Description: Users saw delays up to three hours executing data factory activities in Microsoft Fabric.

More info: More info: Impacted data factory activities included:
– Copy activities
– External activities, including notebook execution
– Pipeline activities

Final Update: 15/04/2026 08:30:00 AM–Microsoft has identified that a portion of Microsoft Fabric infrastructure responsible for processing user activity requests was performing below optimal thresholds, resulting in impact. We’ve reallocated resources to the affected portion of infrastructure and confirmed with a subset of affected users that delays have ceased and the backlog of requests has completed draining, remediating impact for all users.

Scope of impact: Your organization is affected by this event, and all users saw delays.

Root cause: A portion of Microsoft Fabric infrastructure responsible for processing user activity requests was performing below optimal thresholds, resulting in impact.

Next steps: Microsoft are analyzing the affected portion of infrastructure to better understand why it was performing below optimal thresholds to better understand and prevent similar future impact.