When setting up Facebook Pixel, it will ask you to put a tracking code on your website to connect your account. You can add the Facebook Pixel tracking code in the <head> tracking code area of your website.
- Copy the code you receive for your Facebook Pixel
- Login to your dashboard
- Go to Get Found (SEO) section
- Scroll down and paste the code into the Custom <head> tracking code section.
- Click Save.
If you are wanting to track checkout success in particular, see this help guide: Conversion tracking - adding an ecommerce checkout success tracking code to your shop.