Troubleshoot and resolve issues with multiple duplicate transactions occurring for the same service or invoice.
Stay in touch with your customer base by configuring email campaigns to automatically send messages to clients who meet your set criteria.
You can use marketing rules to schedule automated emails to send to your clients when specific events or actions occur.
WHMCS's email templates determine the contents of the email messages that your WHMCS installation sends to your customers. You can customize all of WHMCS's included email templates or create your own Smarty email template files.
WHMCS's default captcha option displays an image with six characters on a striped background. This option does not require additional configuration or an additional account with a captcha service.
For many types of issue, the first step in troubleshooting is enabling WHMCS's error reporting system.
Enable hCaptcha or Invisible hCaptcha as your captcha type in WHMCS. hCaptcha offers checkbox-based and invisible captcha options to help you prevent bots from placing orders, creating accounts, or logging in to your Client Area or Admin Area. Before enabling hCaptcha or Invisible hCaptcha in WHMCS, you must configure it in your hCaptcha account.