When sending users to complete payment inside PayPal (default PayPal Standard is in use in my shop), how can I grab the PayPal e-mail account used by the user to pay, instead of the e-mail user used for registering in my system? 90% of the time, user will use the same account for registration and for payment, but that is not bulletproof. There is nothing stopping the user from using a different PayPal e-mail account.
My store is set so as to require user registration prior to sending him/her to checkout on PayPal.
What I want to do is grab the e-mail used for payment with PayPal and store it as the billing e-mail. Otherwise, WooCommerce will store the default user account e-mail as billing e-mail by default.
Thank you in advance!