Some users may be unable to create or update Ontology artifacts in Microsoft Fabric

Title: Some users may be unable to create or update Ontology artifacts in Microsoft Fabric User impact: Users may have been unable to create or update Ontology artifacts in Microsoft Fabric. Final status: We've isolated a regression impacting a subset of users who were unable create or update Ontology artifacts in Microsoft Fabric. We've determined that a recent feature update introduced a misconfiguration which prevented Ontology artifact creation or updates. We've addressed the misconfiguration and we've validated after an internal monitoring period that impact is remediated. Scope of impact: This issue impacted some users who may have been unable to create or update Ontology artifacts in Microsoft Fabric. Start time: Monday, October 5, 2026, at 10:30 PM UTC End time: Tuesday, October 6, 2026, at 12:26 AM UTC Root cause: A recent feature update introduced a misconfiguration which prevented Ontology artifact creation or updates. Next steps: - We're analyzing the problematic feature update to determine why the potential for impact wasn't caught during our internal update testing and validation phases. This analysis will help us to improve our update implementation process moving forward to help ensure similar impact scenarios don't occur in the future. This is the final update for the event.

Title: Some users may be unable to create or update Ontology artifacts in Microsoft Fabric User impact: Users may have been unable to create or update Ontology artifacts in Microsoft Fabric. Current status: We've investigated a problem in which some users may have been unable to create or update Ontology artifacts in Microsoft Fabric and confirmed that service is now restored. We'll provide additional information in a closure summary within the "History" section of the "Service health" dashboard shortly.