Microsoft Ads Conversion Tracking Setup

I need accurate Purchase data flowing from my WordPress + WooCommerce store into Microsoft Ads. The UET base tag is already created in the Microsoft account; what I’m missing is the event-level code that fires only after a successful checkout and passes the order total and currency... (Budget: $10 - $30 AUD, Jobs: Digital Marketing, JavaScript, PHP, Web Development, Website Optimization, WooCommerce, WordPress)