Hello,

I need to apply few changes in the front-end of nopCommerce (very simple). I will appreciate it if somebody could give me some hints:

When I get a response from third-party services e.g. UPS or Credit-Card processors such as PayPal, all I get is a statement in red that credit card information have been invalid or UPS doesn't offer service for a country or etc.

How can I show those messages in a better format rather than throwing a message?

my current focus is the "payment" step while check-out when user enters a fake/wrong card information. Currently I'm getting "Invalid Credit Card Number".

How can I optimize this? (please give me some details)

How nopCommerce is flexible to play around this kind of work?

Thanks.