You can add Facebook pixel codes except for Add to Cart.
1. Add the base code in Display Options:
- Click Settings.
- Then Display Options tab.
- Scroll to page bottom.
- Click Show.
- Under Advanced Settings.
- Add base code to HTML head box.
2. Then for purchase:
- Click Settings.
- Select Integrations tab.
- Add code to subscribe fields or store fields.
To help you validate your pixel implementation, install the Chrome extension Facebook Pixel Helper. This tool will help to troubleshoot issues and verify if the pixels are installed but not yet activated.