Don't yet have a pixel on your Shopify store? Here's how you can add it:
Install the Facebook app on Shopify, if you don't already have it.
Scroll down to the "Facebook Marketing" section, and click "Start Setup"
Follow the app's steps to connect to your Facebook Ads account. Make sure to click "Finish Setup".
Your Facebook Pixel is live!
Follow this article to adjust your pixel's permissions so that you can use it in Preflect.