As of my last knowledge update in September 2021, "WHMCS 360 Monitoring" does not refer to a specific service or product that I am aware of. It's possible that it may be a term specific to your organization or a new development after my last update.

If "WHMCS 360 Monitoring" is a new feature, service, or product introduced after September 2021, I would recommend checking the official WHMCS documentation, release notes, or contacting WHMCS support directly for the most up-to-date and detailed information on what it entails and how to integrate or utilize it.

Please provide more context or specify if "WHMCS 360 Monitoring" is a specific service or feature introduced after September 2021, and I'll do my best to assist you based on the information available up until that date.