> For the complete documentation index, see [llms.txt](https://docs.avoautomation.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.avoautomation.com/avo-assure/actions/desktop/window/close-sub-window.md).

# Close Sub Window

This is a pre-built action located under the **@Window Element**. The functionality of this action in Avo Assure is to close a sub-window of the application without affecting the main application window.

### Syntax

**Input Value:** `<Sub-window name>;<index>(Optional)`

| Argument                                | Description                                                              |
| --------------------------------------- | ------------------------------------------------------------------------ |
| <p>\<Sub-window name><br>(Required)</p> | Specify the title of the sub-window to be closed.                        |
| <p>\<index><br>(Optional)</p>           | The index of the sub-window, if multiple instances with same name exist. |

**Output Value**

| Argument                                                    | Description                                                  |
| ----------------------------------------------------------- | ------------------------------------------------------------ |
| \<Dynamic Variable>(Optional);\<Dynamic Variable>(Optional) | This dynamic variable holds result as **True** or **False**. |

**Example** **1**

**Closes a specified sub-window within the application based on its name**

The **Close Sub Window** action takes the value from the Input Value column (e.g., **Avo Bank**) and closes the sub-window using the provided name.

<figure><img src="https://2174257472-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fk8QZzXZMIJSStKAzDSTu%2Fuploads%2FwZ9uLn6Pk3uMn75HoLmj%2Fimage.png?alt=media&amp;token=b65303db-51a0-4c18-b1ea-8572a15f8534" alt=""><figcaption></figcaption></figure>

**Example 2**

**Closes a specified sub-window within the application based on its name and index**

The **Close Sub Window** action takes the value from the Input Value column (e.g., **Avo Bank;1**) and closes the sub-window using the provided name and optional index.

<figure><img src="https://2174257472-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fk8QZzXZMIJSStKAzDSTu%2Fuploads%2FNhgVI4g596mH2PaGTqZM%2Fimage.png?alt=media&amp;token=793a4027-6306-4b4e-85c4-b9dfbf41af09" alt=""><figcaption></figcaption></figure>


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