With customer logins your customers can create an account on your website where they can access all their historic orders, update their contact information and easily checkout for future purchases with their username and password.

With customer logins you can also provide special discounts for specific customers, prevent visitors who are not logged in from seeing your prices and require approval before they can use their accounts.

With customer logins enabled you can also see reports on who are you top buyers and use that information to target you marketing.