> For the complete documentation index, see [llms.txt](https://docs.beefree.io/beefree-sdk/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.beefree.io/beefree-sdk/server-side-configurations/server-side-options/custom-javascript-libraries-injection.md).

# Custom JavaScript Libraries Injection

{% hint style="info" %}
This feature is available on the [Beefree SDK Enterprise plan](https://developers.beefree.io/pricing-plans).
{% endhint %}

## Custom JavaScript

Enterprise customers can request to inject external JavaScript libraries, like FullStory or Heap, into Beefree SDK when the integration is initialized as part of the [server-side configuration](/beefree-sdk/getting-started/readme/installation.md). 

Custom JavaScript requires a complete technical evaluation by the Beefree SDK development team. The assessment will undergo security, technical and compatibility assessments.  

## How it Works

Contact our Sales team and ask to run a script to get started with custom JS libraries injection. Once you contact us, we will take the following steps to complete your request:

1. Our representative will forward your request to our development team  
2. The development team will review the script and approve it
3. The script is enabled by our development team


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