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| Type | Usage |
|---|---|
| card_number_invalid | Use whenever a credit card number is invalid. |
| card_expired | Use whenever a credit card has expired. |
| routing_number_invalid | Use whenever a routing number is invalid. |
| account_number_invalid | Use whenever an account number is invalid. |
| duplicate_transaction | Use whenever a duplicate transaction has been detected. |
| card_not_accepted | Use whenever a credit card type is not accepted. |
| invalid_security_code | Use whenever the credit card security code provided is invalid. |
| address_verification_failed | Use whenever the address provided is invalid. |
| transaction_not_found | Use when processing a capture, refund, or void and the original transaction can not be found. |
| general | Use for all other cases. |
Merchant Interfaces
There are four merchant gateway interfaces, each with its own unique set of method requirements. A payment gateway must implement at least one of these interfaces.
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