How do I integrate PayPal Payments Standard with the WHMCS cart?
- Log in to your WHMCS admin panel.
- Select Setup > Payment Gateways.
- Select All Payment Gateways > PayPal.
- Check Show on Order Form.
- Enter a Display name of PayPal.
- Enter your PayPal Email address in the PayPal Email field.
- Determine whether you're selling a one-time product or a recurring product, and choose the settings accordingly.
Note: If the product is a subscription, the invoice includes a recurring product, and the due date is the current date or an earlier date, a PayPal Subscribe button will appear on the client's invoice.
- Enter your PayPal API Signature.
Note: API credentials are required if using refunds.
- Select Currency Conversion if applicable.
- Review any additional options to determine if they apply to your integration.
- Click Save Changes.
WHMCS PayPal Setup Guide