To use the pixel on a Shopify site please do the following:
- Login to your Shopify store admin account
- In the left menu, select Online Store and then select Themes
- On the Current theme press 'Customize'
- From the dropdown menu in the top center menu bar, select the page you want to add the pixel to. (default should be Home page)
- In the left menu, before the footer, click the blue link titled “Add section”
- Search in the box that appears Custom Liquid then click that
- On the right side there should be a Custom Liquid area. Paste the pixel code there.
- By default this section will have paddings; set these to 0 so they don’t interfere with the design
See example video here: