The below messages are possible response codes to be received by transactions.
| Decline Response | Message | Payment Method Type |
| APPROVED | No action required | ALL |
| INSUFFICIENT_FUNDS | The payment method does not have enough funds to cover the transaction | ALL |
| INVALID_CARD_NUMBER | Card number is invalid, try again with correct card information | CARD |
| CALL_ISSUER | Customer should contact their card issuer | CARD |
| PICKUP_CARD | Card may be lost or stolen, contact Issuer | CARD |
| CARD_LIMIT_EXCEEDED | Available balance or credit has been exceeded | CARD |
| INVALID_EXPIRATION_DATE | Try again with correct expiration date | CARD |
| NOT_SUPPORTED | Card or transaction not supported | CARD |
| RESTRICTED_CARD | Contact Issuer | CARD |
| FRAUDULENT | Declined due to potential fraud | CARD |
| PROCESSING_ERROR | An error occurred, please retry and if retry fails contact the card brand, or Issuer | CARD |
| GENERIC_DECLINE | Decline reason unknown, contact Issuer or call phone number provided | CARD |
| INVALID_DATA | The data submitted with the transaction was invalid | CARD |
| UNRESOLVED | The acquirer did not respond. | ALL |
| INVALID_ACCOUNT_NUMBER | Verify correct information and try again | BANK ACCOUNT |
| INVALID_ROUTING_NUMBER | Verify bank routing number and try again | BANK ACCOUNT |
| STOP_PAYMENT | Account holder has placed a stop order on this payment | BANK ACCOUNT |
| NOT_PERMITTED | Transactions are prohibited against the account or card provided | BANK ACCOUNT |
| ACCOUNT_LIMIT_EXCEEDED | Sale limit has been exceeded on customer’s account | BANK ACCOUNT |
| ACCOUNT_BLOCKED | This account has been blocked or part of negative file | BANK ACCOUNT |
| TIMEOUT | The acquirer did not respond. | ALL |
| CALL_ACQUIRER | Please contact your Acquirer Relationship Manager for assistance with this payment. | ALL |
| RESUBMIT_TRANSACTION | There was an issue processing the payment and it did not go through, please try resubmitting. | ALL |
| CARD_EXPIRED | The card is invalid or expired. Please contact the Cardholder to update the information. | CARD |