> For the complete documentation index, see [llms.txt](https://docs.oneweb.tech/oneweb/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.oneweb.tech/oneweb/design-and-develop-oneweb-apps/integration-with-other-systems/develop-integration-with-oneweb-microflow/activity-nodes/sub-flow.md).

# Sub Flow

Use the **Sub Flow** node to call another microflow.

<figure><img src="https://2015371994-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FMpDjHWFRUtZ5nJcSfVXd%2Fuploads%2FNYd1VfJZM1JFmymsm1tq%2Fimage.png?alt=media&amp;token=5e002685-56de-4d30-b08d-bffed635fba2" alt=""><figcaption></figcaption></figure>

### **Purpose**

The **Sub Flow** node is used to call other microflows from within the main flow. If there is a section of the main flow that can stand alone, it is good practice to implement it as a separate microflow. Now you can call this flow from the main flow using the Sub Flow node. This improves clarity and reusability.

### **Sub Flow Node Configuration Properties**

Sub Flow Node Configuration panel has 3 tabs to define properties.

**General**

General Tab contains general information such as title, task id etc.

**Business Object**

Used to configure and map the **Business Object** for input and output for the node.

**Sub Flow**

&#x20;

<figure><img src="https://2015371994-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FMpDjHWFRUtZ5nJcSfVXd%2Fuploads%2Fx2Llp7IiNxRrlHuyZaIt%2Fimage.png?alt=media&amp;token=3859bf88-b949-4e62-8b86-e585bf3d8b2c" alt="" width="546"><figcaption></figcaption></figure>

<table data-header-hidden><thead><tr><th width="165"></th><th width="122"></th><th width="103"></th><th></th></tr></thead><tbody><tr><td><strong>Property</strong></td><td><strong>Mandatory</strong></td><td><strong>Default</strong></td><td><strong>Description</strong></td></tr><tr><td>Flow Name</td><td>Yes</td><td></td><td>Choose the flow that you want to use as a sub flow in your main flow.</td></tr></tbody></table>

In **Sub Flow** tab, "**Open Sub flow"** button is used to open or edit the sub flow. **"Open Mapping Parameter"** button is used to map parameters to the sub flow. When click on **Open Mapping Parameter** button, the system will redirect user to **Mapping Parameter** screen and then user can click **Mapping Parameter Input** line or **Mapping Parameter Output** line to map parameters for this task.


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