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The Dummy Source emits a single seed record so a package can run without reading from an external source. Use it when the package is triggered by a webhook or schedule, or when a downstream component (for example a Python or REST API step) fetches the data itself.

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When to use it

Add a Dummy Source when your package has no real source data to read, but still needs a source component to be valid. Common cases:
  • Webhook-triggered packages where the payload is handled downstream.
  • Schedule-driven packages that call out to an API or run a script.
  • Packages where a Python script or REST API transformation pulls the data, and the source exists only to start the flow.
It replaces older workarounds that used a dummy file or dummy API source.

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Add the Dummy Source

  1. In the package designer, open the Sources palette.
  2. Drag Dummy Source onto the canvas.
  3. Open the component. There is nothing to configure.
  4. Connect it to the next component in your package.

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Output

The Dummy Source produces one record with a single field: The seed field is a placeholder. Downstream components are expected to generate or fetch the data your package actually processes.

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Limitations

  • No connection or configuration options.
  • Schema is fixed to one string field named seed. You can map or drop it in a downstream Select transformation.
  • Data preview is not available on this component.
Last modified on June 29, 2026