You can configure a Purchase event on that URL from our Events tab. However, this won’t be our default WooCommerce event and it won’t have the default parameters. The biggest issue is that it won’t track the transaction value (you can set up a value to be used all the time), and it won’t track the content_ids (required if you do dynamic ads).
We do support custom thank you pages, but it’s a pro version and in order to work you need:
1. our pro version: https://www.pixelyoursite.com/facebook-pixel-plugin
2. our super pack: https://www.pixelyoursite.com/super-pack
3. you must remove the current “custom thank you” page redirect and implement it using our add-on. It allows global CTP, or per-product CTPs.
If you’re interested, send me a message on our contact form and I’ll give you a link for a bundle deal: https://www.pixelyoursite.com/contact