If you are using Google Ads Api correctly through window.dataLayer, conversions are also sending to Owlcure Analytics by default, and you don't need to set up anything else.

Otherwise, add this code snippet to your thank you for the order page. The parameter order_id should be the same identification used in your orders XML feed. The parameter price is the overall order price.

owlFly('order:purchase',   {     order_id: 256,     price: 24.90   });