After invoice generation, you can easily manage your clients' invoices, including payment, splitting invoices, cancelling them, and more.
LoginShare modules can generate unique WHMCS API authentication credentials to authenticate users against a separate third-party system.
To allow your customers to search for domains, you must configure a lookup provider. Some lookup providers support namespinning.
Modify an existing order by replacing the record with a new order. We recommend this method because some order details are immutable.
Order form templates set the look and feel of the shopping cart. WHMCS includes default order form templates or you can create your own.
Customized products allow customers to choose from predetermined options, add upgrades and addons, set values like usernames, and more.
Security questions add an extra level of security for users. During password resets, the system uses them to verify the user's identity.