If you did not defined an AutoAuth key in your WHMCS installation, then open the configuration.php
file, which can be found at the root directory of WHMCS, and add following code at the end of your file:
$autoauthkey = "secure_string"; |
Replace "secure_string" with a random string.
If no key is defined, the auto login will not work. In that case an error message get logged into your Activity Log which tells you to add a Auto Auth key. |