I would like to know how can I do Facebook tracking for successful orders only from website?
As I am unable to find unique URL which comes up after successful order.
Are you trying to set up Facebook Pixel? You should use Neto's add-on for that:
https://galaxy.maropost.com/s/article/Facebook-Pixel-Setup
As you've seen, there is no consistent URL for order confirmation pages so the add-on creates a custom script to pass this info to the Pixel.
There was a similar discussion recently about Google Ads integration:
https://galaxy.maropost.com/s/question/0D5J100000V04nhKAB/in-google-ads-it-asks-for-webpage-customers-will-see-after-completing-a-purchase-for-conversion-tracking-can-anyone-tell-me-what-that-is-in-commerce-cloud
