High severityfabric
Power BI Refresh Error:
EventHubException
What does this error mean?
Fabric Activator received an exception from an eventstream while importing data. This happens when the connection between an Eventstream item and the Fabric Activator object is broken or produces errors — typically after the eventstream is deleted, reconfigured, or the connection is removed.
Common causes
- 1The eventstream item connected to the Fabric Activator object was deleted
- 2The connection between the eventstream and the Activator object was removed
- 3The eventstream itself has an upstream connection error (source event hub unreachable or reconfigured)
- 4Permissions on the eventstream item changed after the Activator connection was established
How to fix it
- 1Open the eventstream item in Fabric and inspect the connection to the Fabric Activator object for errors
Beyond the docs
Common practitioner solutions not covered in the official documentation.
- 1If the eventstream was deleted, recreate it and reconnect it to the Activator object
- 2Check the eventstream source connection (e.g., Azure Event Hub) for upstream connectivity or credential issues
- 3If permissions changed, ensure the Activator has access to the eventstream item (see UnauthorizedAccess errors)
- 4Reconnect the Fabric eventstream to the Fabric Activator object via the Activator settings
Official documentation: https://learn.microsoft.com/en-us/fabric/real-time-intelligence/data-activator/activator-troubleshooting