Hi,
Could you tell me which API it is i need to use for SimpleCart please?
The options are:
Pre-built payment solution
You’re using a third-party ecommerce solution, like Magento or Shopify,
for shopping carts and online stores where the PayPal payment processor
is built in. Grant API permission Add or edit API permissions
PayPal Checkout SDK integration
You or your developer integrated the Braintree v.zero SDK that allow you to accept payments via PayPal. Request SDK Credentials
NVP/SOAP API integration
You or your developer integrated NVP/SOAP (or “Classic”) APIs that allow you to accept payments via PayPal. Request API credentials
Thanks