WooCommerce to Facebook Conversion API (FB CAPI) [Deprecated as of 3.1]
Deprecated as of v3.1 (See details)
Go to UTM > WooCommerce Postback and select Facebook Ads
You don't need any other change here...
Click Facebook CAPI menu in UTM and enter Facebook pixel id and access token
How to generate Access Token: Go to your pixel, click Settings, scroll down to the Conversion API and click Generate Access Token.
Once you set it up everything, keep monitoring your events and watch your event match increases to high 8-9s.