PayPal沙箱要使用哪种信用卡？

Question

I am using the sandbox url for accepting test payment through paypal.

When a user clicks a button he is redirected to paypal sandbox site. On the paypal sandbox site the user is presented with an option to pay using credit card. However when I try test credit card 4111-1111-1111-1111 it gives me the following error "The card you entered cannot be used for this payment. Please enter a different debit or credit card number."

I am not sure what am I missing?

Answer 1

The numbers provided in the documentation are used so much that the sandbox servers just don't accept them anymore. They really need to update the docs.

I would recommend generating fresh credit card numbers to use. I always use this site for that. The numbers it generates will work fine in the sandbox.