# Billing System Integration
After enabling Background Billing in the Configuration section, you need to set up a billing system integration to connect your PanelAlpha installation with your billing platform.
# Configuring Billing System
To configure the billing system integration:
- Navigate to the Admin Area
- Go to the "Background Billing" section
- Select the "Billing System" tab
# Available Integrations
Currently, PanelAlpha supports the following billing system integration:
# WHMCS Integration
To integrate with WHMCS:
- Select "WHMCS" from the integration type dropdown
- Enter your WHMCS URL (the full URL to your WHMCS installation)
- Enter your WHMCS API Token
Note: The WHMCS API Token must be configured properly in your WHMCS installation. For detailed instructions on setting up the required API permissions, please refer to the WHMCS Integration Guide.
- Click "Save Changes" to apply the configuration
Once configured, PanelAlpha will be able to communicate with your WHMCS installation to handle billing operations in the background.