Some provisioning and server-related issues are due to misconfiguration in your WHMCS installation, while others may be due to networking issues or other server-side problems. Overage billing allows you to bill clients on cPanel, Plesk, or DirectAdmin hosting servers for their monthly disk or bandwidth use. You can use Plesk's WHMCS Installer extension to easily install and configure WHMCS on a Plesk server. Sitejet Builder includes everything that your customers need to create professional websites without needing to learn to code. You can use automated options like Sync Accounts or Importassist to migrate your data, or you can add data using manual entry. Single Sign-On allows users to log in to a cPanel & WHM or Plesk hosting account directly from a link in WHMCS without reauthenticating. Usage billing allows you to set up variable-priced items for products. The system then determines pricing based on actual usage data. Troubleshoot and resolve Plesk_Manager_V163::_getSsoRedirectUrl(): Argument #2 ($username) must be of type string errors. Troubleshoot and resolve Plesk blank command errors. Troubleshoot and resolve Unable to create hosting. IP address does not exist in client's pool errors. Add a Plesk server to WHMCS. Before you can sell and provision Plesk accounts, you must add at least one Plesk server. Custom templates can alter the icons for the Client Area's Quick Shortcuts section. This section displays for Plesk and cPanel services. Troubleshoot and resolve domain setup errors. Troubleshoot and resolve Customer with email '[email protected] ' is not found in panel errors. Troubleshoot and resolve Parser error: Request is invalid errors. Troubleshoot and resolve Unable to accept the template: the following limitations are exceeded errors. Troubleshoot and resolve Plesk permission denied errors. Troubleshoot and resolve Plesk permission denied errors. The Plesk module allows you to add and manage Plesk servers in WHMCS. Troubleshoot and resolve 503 Service Temporarily Unavailable, Page not Found, Timeout, or 502 Bad Gateway errors.