Dataflows - Preview only steps

Data Factory · General availability · Shipped

Data Factory General availability Shipped
Last Modified: March 26, 2026 Release Date: March 16, 2026

Description

Preview only steps are transformation steps in Dataflow Gen2 that are executed only during the authoring phase for the data preview. They're excluded from run operations, ensuring they don't affect runtime behavior or production logic.They're designed to accelerate the authoring experience by reducing evaluation time in the data preview pane. They allow you to iterate and validate transformations more quickly without impacting the final execution of the dataflow.You can learn more about Preview only steps in this article: [https://learn.microsoft.com/en-us/fabric/data-factory/dataflow-gen2-preview-only-step](http://)As part of the planned enhancements, we will make this feature generally available.

📰 Related Blog Article

Dataflow Gen2: Dataflow Diagnostics Download (Preview)
🔗 blog.fabric.microsoft.com

Change History

  1. 2026-03-26
    Release Status Planned -> Shipped
  2. 2025-11-18
    Roadmap Item Added
← Back to Roadmap View API JSON Workload: Data Factory