So I'm trying to create ads in Facebook using a custom audience that retargets users who have initiated or taken certain setps within the checkout, and excluse users who have completed the checkout. I've set up the Facebook pixel and it's been working fine for a while.
Facebook requires me to enter URLs for this retargeting campaign, but it seems that shopify generates a unique URL for each person who enters the checkout. But you can set up conversion funnels in Google Analytics here: https://help.shopify.com/manual/reports-and-analytics/google-analytics/google-analytics-goals-and-fu...
So basically, how do I do the same thing for my ad using URLs? How can I target people who have taken certain actions in the checkout, but not target those who have made the purchase?