PayPal API Direct Payment process

Question

I used usual seller account on sandbox, not wpp. Can i use direct payments from credit card on that account or i need create only wpp account? Now i recieve error:

[L_ERRORCODE0] => 10501
[L_SHORTMESSAGE0] => Invalid Configuration
[L_LONGMESSAGE0] => This transaction cannot be processed due to an invalid merchant configuration.
[L_SEVERITYCODE0] => Error

Answer 1

否，您必须设置一个Website Payments Pro帐户才能测试DoDirectPayment API。

Answer 2

您将需要在沙盒中设置买家帐户并将其用于测试