ActiveMerchant response for American Express

I’ve tested the credit card thing they’ve got and I have it working.

The only problem is, when I try to charge using an American Express, I
get this “card_code_message”: “Issuer was not certified for card
verification”.

Can anyone explain what this means, or if anyone else has had a problem
like this?

Joe P. wrote:

I’ve tested the credit card thing they’ve got and I have it working.

The only problem is, when I try to charge using an American Express, I
get this “card_code_message”: “Issuer was not certified for card
verification”.

Can anyone explain what this means, or if anyone else has had a problem
like this?

http://activemerchant.rubyforge.org/classes/ActiveMerchant/Billing/AuthorizeNetGateway.html

Check with Authorize.net for codes.