The system is unexpectedly suspending services (for example, hosting accounts).
The system is unexpectedly terminating services (for example, hosting accounts).
Troubleshoot and resolve unexplained declined cards and failures.
Troubleshoot and resolve transactions that the system isn't recording.
Troubleshoot and resolve The sender's email address is not registered. (WHMCS 8.4 and later) or Unregistered Email Address (WHMCS 8.3 and earlier) errors.
Troubleshoot and resolve issues with sending general emails to clients.
Troubleshoot and resolve issues with ticket notification emails.