My client has a PayPal Business account, not a Braintree account. Wanted to use this solutions without having them create another account. The log shows this error when using MasterCard credit cards: [16-02-2019 11:35:12] PayPal\Core\PayPalHttpConnection: ERROR : Got Http response code 400 when accessing https://api.paypal.com/v1/payments/payment. {“name”:”VALIDATION_ERROR”,”details”:[{“field”:”payer.funding_instruments[0].credit_card.type”,”issue”:”Credit card type must be visa, mastercard, amex, jcb, or discover.”}],”message”:”Invalid request. See details.”,”information_link”:”https://developer.paypal.com/docs/api/payments/#errors”,”debug_id”:”4043953bf3950″}