Admin area, go to the Sales → Customers
The AbanteCart shopping cart allows you to manage all registered customers profiles as well as registered newsletter subscribers
E-commerce shoppers generally do not want to enter additional information, set up additional accounts login and password, validation etc; so they opt for guest checkout. If you need to contact a customer due to a faulty product or an order issue use the email address is associated with the order.
You can disable Guest checkout in System → Settings → Checkout via Guest Checkout setting. Now customer will not be able to check out without registering.
System → Settings → Checkout via Customer Group dropdown
System → Settings → Checkout via Approve New Customers setting. If On customers see approval waiting page after registration. This will require admin approval before activating customers accounts. Once approved the customer will receive confirmation e-mail
System → Settings → Checkout via Email Activation for New Customers setting. Take a note more registration steps make some people confused.
System → Settings → Checkout. To improve security, require customers to create unique login name instead of using email address as login name. If set to Require Login Name to ON, existing customers will be asked to create new login name at the first login. If OFF, login name is set as customer email address.
System → Settings → Checkout. Select Account Terms content page to force people agree to terms before an account can be created.