Please add a way to integrate Woocommerce/Wordpress and WHMCS so one can buy a product in Woocommerce/Wordpress and all the billing, invoicing, product settings etc - will be done in WHMCS.
In general I want a customer to click a button in my wordpress site or in Woocommerce and to get a message to create a new account or to login to his account (whmcs account) and after log-in to pay for the relevant product all without leaving Woocommerce/Wordpress.
If it's a new customer a new customer will be added to WHMCS.
The relevant product and payment gateway will be handled via WHMCS.
each such order will be added to the regular WHMCS order list etc.
So the customer will buy in Woocommerce/Wordpress and the backoffice, billing and the product it self will be handled via WHMCS admin and client area.
There is an old feature request with 25 votes here: