When a buyer's funding source fails, the
DoExpressCheckoutPayment call returns a 10486 error. If this error occurs, the buyer can return to PayPal where the buyer can add or choose an alternate funding source.
A funding source might fail for these reasons:
- ◇ The billing address associated with the financial instrument could not be confirmed.
- ◇ The transaction exceeds the card limit.
- ◇ The transaction was denied by the card issuer.