How do I integrate PayPal Checkout with the WHMCS cart?

Here's how:

1. Log in to your WHMCS admin panel.
2. Go to Setup > Products/Services > Payment Gateways.
3. Select All Payment Gateways > PayPal Express Checkout.
4. Check Show on Order Form.
5. Enter your PayPal API credentials.
6. Review any additional options to determine if they apply to your integration.
7. Click Save Changes.

See also:

WHMCS PayPal Checkout Setup Guide
WHMCS PayPal gateway options

Refer to our preferred Platforms and Marketplaces Directory for additional shopping cart-specific information.