Welcome to Shopify Community. My name is Olivia and I work here.
I'd love to help you out with your question today. You haven't specified what tracking code you are trying to add to your site. For example, we have built-in integrations for you to insert Facebook Pixels, or even Google Analytics, into your site.
Depending on your tracking needs, you might even want to insert your tracking code directly into the code of your website's theme with these steps:
If you're looking for something other than this don't hesitate to reach back out and let me know.
I look forward to your reply,