This integration transfers customers to PayPal, where they enter their payment information. All credit card and PayPal transactions take place on a PayPal checkout page.

Here's how to integrate Express Checkout with CoreCommerce:

1. Log in to your CoreCommerce admin panel.
2. Hover over Settings and select Payment Settings.
3. Click PayPal Express Checkout.
4. Check the box next to PayPal Express Checkout.
5. Configure the following settings:

• API Username - Enter the API username from your PayPal account profile.
• API Password - Enter your API password.
• Certificate Upload for API Certificate - Click Browse or paste in your API Signature or API Certificate, depending on which API option you've selected.
• Currency Code - Enter a Currency Code if you won't use USD.
• Should the "PayPal Credit" checkout button be displayed? - Although not required, PayPal recommends setting this option to Yes for additional payment options for your customers.
• Authorization - Select either Authorized and Captured or Authorized Only.

6. Click Save.