Decline Code 14: Invalid Account Number

The decline code “14: Invalid Account Number” in the context of a credit card transaction means that the credit card number entered is incorrect or does not exist. This could be due to a mistake in entering the numbers, a typo, or the card number being outdated or not issued by any financial institution. As a result, the payment gateway or the processing bank cannot recognize or validate the card number, leading to the transaction being declined. To resolve this issue, it is recommended to double-check the card details entered and try the transaction again, or use a different payment method if the problem persists.