This article explains how to troubleshoot a Module Command Unknown Error which you may have received via email, seen listed in the Module Queue or the Activity Log.

If you are experiencing a technical issue with a module, logging can be enabled to identify the cause:

1. Navigate to Utilities > Logs > Module Log
2. Click Enable Debug Logging
3. Now reproduce the issue
4. This module debugging tool can be used to identify and resolve problems communicating with remote API systems. It will record and display the raw API data being sent to, and received back from the remote system. Logging should only ever be enabled for testing, and never left enabled all the time.
5. Return to the module log page.

The details of the interaction between WHMCS and the module will be displayed on-screen for your own analysis. These details can then be forwarded to the provider's technical support team if necessary.

6. Click the Disable Debug Logging button.