I've been trying to get a site working with authorize.net - I keep getting an error back for the card processing error message:
"We were unable to process your credit card payment. Please verify your card details and try again. If the problem persists, contact us to complete your order." -
I'm not sure where the problem is, I tried it in test mode and production mode, the authorize account itself is set up correctly and in test mode. I've seen two different messages in the logs. The API Login key is correct, and I'm almost certain the transaction key is also correct.
Payment failed: Credit card payment declined: (TESTMODE) This transaction cannot be accepted.
Payment failed: Credit card payment declined: (TESTMODE) The merchant login ID or password is invalid or the account is inactive.

