---
version: "2026.1.0"
language: "en"
---
# Start and Stop

These building blocks are used to start and stop an automation flow.

The [Start](https://docs.leapwork.com/leapwork-flow/latest/building-blocks/start-stop/start.md) block is the starting point of all automation flows, is always present and cannot be deleted.

The [Pass](https://docs.leapwork.com/leapwork-flow/latest/building-blocks/start-stop/pass.md) and [Fail](https://docs.leapwork.com/leapwork-flow/latest/building-blocks/start-stop/fail.md) blocks are used to explicitly end a case run immediately in a passed or failed state, while the [Done](https://docs.leapwork.com/leapwork-flow/latest/building-blocks/start-stop/done.md) block is used to end a case run in a state that is neither. This distinction can be very useful in some test automation scenarios, whereas others may not need it.