> ## Documentation Index
> Fetch the complete documentation index at: https://notikaai.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Preview

> Verify your workflow step outputs with live data.

With Dreamlit, you can preview your workflow with live database rows. This means you can simulate and verify your workflows end-to-end and build confidence before publishing them.

Selecting different data is as simple as clicking the **Preview with different data** button.

## Using the preview tab

The preview tab allows you to preview your workflow with real data, and inspect how data flows through each step. If the step generates a notification, you can preview it as well.

1. **Open your workflow** in the builder and click a step.
2. Click the **Preview** tab.

<Tip>
  Any notifications you see in the preview panel are just a simulation. They're not actually sent.

  You can then select different data to verify your workflow under various conditions.
</Tip>

Testing helps you validate your entire workflow with real data—before flipping the switch.
Once you've confirmed everything is correct, you're ready to [publish](/docs/workflow/publishing-workflows) your workflow with confidence.