---
title: "Add a module to an existing site collection or site"
slug: "add-a-module-to-an-existing-site-collection-or-site-1188174"
abstract: "Install modules for existing site collections and/or sites using a script or the bulk module installer."
---
# Add a module to an existing site collection or site

When you create a new site collection or site, the wizard lets you select the modules that you want to include. When you have an existing site collection or site and want to add modules later, you can add modules to a specific site collection or site or use the SXA bulk module installer to install modules for multiple site collections or sites.

<details>
<summary><h2>Add modules to a specific site collection or site</h2></summary>

To add modules to a specific site collection or site:

1. In the Content Editor, right-click the site collection or site, click **Scripts** , and then click **Add Site Collection Module** or **Add Site Module**.

    ![Add site or site collection module](https://doc.sitecore.com/api/markdown-image/xp/en/developers/sxa/105/sitecore-experience-accelerator/images/headless-site-add-module.png)

2. In the dialog box, the missing modules are listed. Select the modules that you want to add and click **OK**.

</details>

<details>
<summary><h2>Add modules to multiple site collections and sites using the Bulk module installer</h2></summary>

To add a module to multiple site collections or sites:

1. In the Content Editor, navigate to the module that you want to add in */sitecore/System/Settings/Foundation/Headless Experience Accelerator* or */sitecore/System/Settings/Feature/Headless Experience Accelerator*
2. Right-click the module, click **Scripts**, and click **Install Headless Site Collection module** or **Install Headless Site module**.

    ![Install headless site collection module](https://doc.sitecore.com/api/markdown-image/xp/en/developers/sxa/105/sitecore-experience-accelerator/images/headless-install-site-collection-module.png)

3. In the **Add module to site/site collection** dialog select the site collections or sites that you want to add the module to and click **OK**.

</details>