Add and Associate Users

Add users manually, associate them with existing clients, and change the client account owner. Users own and manage client accounts.


Install on the Command Line

If you want more configuration options than browser-based installation offers, you can install and upgrade WHMCS on the command line.


Match User and Client Details

Make sure the details for a user and an associated client match by updating them manually. These details do not automatically sync.


Secure Writeable Directories

We recommend moving all writeable directories to a secure, private location and updating related items to prevent unauthorized web-based access.




Reset a User Password

Initiate a password reset for a user who has lost their Client Area password. Users can also initiate password resets on the login form.


Install ionCube Loader

ionCube Loader® is a PHP extension that allows decoding and encoding of WHMCS files. Make sure your system uses the correct version.