> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.rapibundle.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Compatibility with UpCart for Rapid Bundle Users

If you use Rapid Bundle with the UpCart app, there’s an important setting to enable in UpCart to ensure seamless compatibility and functionality.

Here's how to adjust the setting:

1. Open the UpCart app.
2. Go to "Cart Editor" in the sidebar navigation.
3. Select "Settings."
4. Expand the "Advanced Settings" section.
5. Activate the "Enhanced Ajax API Compatibility" option.
6. Click "Save" to apply your changes.


![](https://storage.crisp.chat/users/helpdesk/website/a0e618cac6e0200/screenshot-2024-05-11-at-10293_cvurqc.png)

Following these steps ensures Rapid Bundle and UpCart work harmoniously together.