When you set up your WHMCS installation, you must set up the system cron job. The system cron controls all of WHMCS's automation, including daily tasks like generating invoices and sending email notifications.
Use System Health to view your system environment status and quickly find and address issues.
Troubleshoot and resolve timezone-related automation issues, like incorrect timestamps or cron frequency warnings.
Troubleshoot and resolve Unable to communicate with the WHMCS installation errors.
Troubleshoot and resolve Call to undefined function curl_init() errors.
Troubleshoot and resolve Whoops Exception Maximum execution time of 30 seconds exceeded errors.
Check your system cron job's status to ensure that it is running correctly and completing the daily automation tasks. This is the first step to addressing many automation problems.