Please implement Recover from 10486 Error Code

There is an error being returned frequently in your plugin from the PayPal API.

The error code is deprecated, although they are still allowing it.

Basically, the error code 10486 means a funding source failure from any of 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.

The way you are SUPPOSED to handle this, is to RESTART the purchase so the buyer can choose another payment method. It may be they tried with guest checkout, it may be they got the address wrong, it may be they entered the card number incorrectly.

Rather than customers GIVING UP because they just see an error, you need to adjust this so that customers get redirected properly.

Here is the advice about this being deprecated:

https://developer.paypal.com/docs/classic/express-checkout/ht-ec-fundingfailure10486/

And here is the correct way to handle the error response:

https://developer.paypal.com/docs/archive/checkout/how-to/customize-flow/#manage-funding-source-failure