You can view license information, force license updates, and change your license key from within the WHMCS Admin Area.
Troubleshoot and resolve A license key is required. errors during installation.
Troubleshoot and resolve No Connection licensing errors.
Troubleshoot and resolve You are currently accessing the admin area using an insecure connection errors.
The Software Licensing addon module allows you to license and sell your own web applications and implement remote license checking.
In some circumstances, you must force WHMCS to perform a license update.
When you move your WHMCS installation, you may need to perform additional steps like updating your license.