Dreamlit is an end-to-end notification service — which means you can simulate and verify your workflows from trigger to notification delivery all in one place. No need to fiddle around with APIs, coordinate across multiple services, or look through logs. It’s as easy as just clicking different steps and seeing how data is flowing through them, or clicking different rows in your database to simulate how the workflow behaves with different data.

​
Using the simulator test panel

The test panel 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.
  2. Click the Test bar at the bottom of the screen.
  3. It expands to reveal a side-by-side preview of Sample Trigger Input, Step Input, and Step Output. The Sample Trigger Input is a row from your database that triggers the workflow.

Selecting the "Send email" step with the Test panel open previews data flowing through this step, including the email that would be sent.

Any notifications you see in the “Step output” test panel are just a simulation / preview. They’re not actually sent.You can then select different trigger inputs to verify your workflow under various conditions.
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 your workflow with confidence.