---
version: "2026.1.0"
language: "en"
---
# Execution Output

The **Execution Input** block is used inside sub-flows to define where the execution should begin when the sub-flow is called. It acts as the starting point and connects to the first functional block within the sub-flow.

When a sub-flow is invoked, the flow begins at the **Execution Input** block and continues through the connected logic path.

The Execution Output block shows the following properties:  
![image-20251113-141836.png](https://docs.leapwork.com/__attachments/a_5ec4e220b3706a7173b46268fd098330e9286df183091d71ac2313614afb7858/image-20251113-141836.png?cb=4716f1be21cd1af839171bd18e06b647)

**Note:** The screenshot on this page uses the **Elegance Design** , introduced in **2025.3**. If you are using an earlier version, your layout may look different.

## Quick-start

1. Drag **Execution Input** onto the sub-flow canvas.

2. Connect the output of the **Execution Input** block to the block that should receive the execution input within the sub-flow.

3. Run the main flow that references this sub-flow.

## Building block parameters

Parameters  
**Execution Input**

Defines the execution entry point for a sub-flow. Should be connected to the block that will receive the execution input. Enables control to pass into the sub-flow when triggered from a parent flow.

## Resources

|                                                **Topic**                                                |                                                  **Description**                                                  |
|---------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------|
| [Flows FAQ](https://docs.leapwork.com/faq/latest/leapwork-flow-faq/flows-faq.md)                                                 | Common questions about creating, running, and managing flows in Leapwork.                                         |
| [Flows Troubleshooting](https://docs.leapwork.com/troubleshooting/latest/leapwork-flow-troubleshooting/flows-troubleshooting.md) | Guidelines and solutions for identifying and fixing issues that occur when building or running flows in Leapwork. |