You can enable E-commerce tracking by going to
Google to Analytics>Website Property>Admin >eCommerce Setting
Inside your eCommerce Settings, you need to enable the eCommerce and eCommerce reporting, after enabling the eCommerce reporting you will have the option to add the funnel for the checkout process. Here you can add your funnel, in my case I’ve added the Checkout Page, Billing Info, and Proceed to Payment and click on the Save button.
Now you are all set to track your WooCommerce and Easy Digital Downloads stats.