# Mock

> When to use the Mock node while you sketch a workflow, its configuration, and what it outputs.

A placeholder node with no behavior. Use it to sketch the shape of a workflow before implementing the actual logic. It passes the run on to the next node without doing anything, and produces no output.

## When to use Mock

- Modeling: rough out the structure of a complex workflow before connecting real nodes.
- Stubbing: hold a position in the workflow where a node will be added later without breaking the structure of the workflow.

The Mock node is not intended for output simulation. To return a fixed value during testing without calling an external service, use a Script node that returns a hardcoded value.

## Configuration

The Mock node has no configuration fields.

## Output

The Mock node produces no output. The nodes after a Mock node cannot reference any output from it.

## Notes

- A Mock node that is wired into the workflow will execute (passing control to the next node) but does nothing.
- Replace Mock nodes before you deploy a workflow.

## Next steps
- [Output mocking](output-mocking.md): returning a fixed output from a real node during a debug run.
- [Script](node-script.md): returning a hardcoded value.
- [Community](community.md): ask questions and share workflows with other builders on the UiPath Forum.