I am working on a self hosted Wordpress website where we sell physical products and memberships and using the WooCommerce standard plugin to handle our cart / checkout. I use a tag to create the checkout page "[woocommerce_checkout]". For payment we only use PayPal. I have figured out how to capture the PayPal IPN so that I can do additional processing (i.e creating the member in the database) and this seems to work with no issue.
The problem is I would like capture the fields on the WooCommerce checkout page to be available in the IPN response from PayPal. For instance, first name, last name, address, email etc. How can I specify that these are included in the PayPal IPN? Is this available in the settings for the plugin or will I need to make my own implementation of the checkout page?