System themes and order form templates let you control the Client Area, the client-facing user interface in WHMCS. WHMCS allows you to provide a seamless experience for your customers by customising the look of the Client Area to match your company’s website and branding.
Themes, or System Themes, in WHMCS control the client-facing user interface. WHMCS allows you to provide a seamless experience for your website visitors by using system themes to customise the Client Area to match the rest of your website.
WHMCS currently ships with two system themes for the Client Area:
- Twenty-One was introduced in WHMCS 8.1 and is currently the default system theme for new installations.
- Six was the default theme for WHMCS 6.0 through 8.0.
We recommend using and customising Twenty-One. We will remove Six in a future version of WHMCS.
We recommend using Child Themes for your customisations.
You can set the System Theme in WHMCS’s Admin Area at Configuration > System Settings > General Settings in the General tab.
Order Form Templates
Order form templates control the look and feel of individual product and shopping cart pages in the Client Area.
You can set a Default Order Form Template at Configuration > System Settings > General Settings in the Ordering tab. You can also select an order form template for individual product groups at Configuration > System Settings > Products/Services.
In WHMCS 8.1 and later, WHMCS automatically checks for compatibility between your System Theme and the order form templates you use.
For more information about order form templates, see Order Form Templates.