| REFER_TO_CARD_ISSUER | Refer to card issuer | Contact Monit customer service |
| INVALID_MERCHANT | Invalid merchant | Check merchant lock settings on Monit dashboard. |
| DO_NOT_HONOR | Do not honor | Contact Monit customer service |
| PARTIAL_APPROVE | Partial approval | Contact Monit customer service |
| INVALID_TRANSACTION | Invalid transaction | Contact Monit customer service |
| INVALID_AMOUNT | Invalid amount | Check card spending type, make sure that card is unlocked. |
| INVALID_CARD_NUMBER | Invalid card number | Check card details. |
| INVALID_ISSUER | Invalid issuer | Contact Monit customer service |
| FORMAT_ERROR | Format Error | Contact Monit customer service |
| INSUFFICIENT_FUNDS | Insufficient funds | Check card balance and limit settings and make sure that card is unfrozen. |
| EXPIRED_CARD | Expired card | Contact Monit customer service to extend card expiry date |
| INVALID_PIN | Invalid PIN | Check card details. |
| TRANSACTION_NOT_PERMITTED | Transaction not permitted to cardholder | Contact Monit customer service |
| EXCEEDS_LIMIT | Exceeds withdrawal limit | Contact Monit customer service |
| RESTRICTED_CARD | Restricted card | Contact Monit customer service |
| SECURITY_VIOLATION | Security violation | Contact Monit customer service |
| PIN_NOT_CHANGED | PIN not changed | Currently our card does not support for PIN transactions |
| PIN_TRIES_EXCEEDED | Allowable number of PIN tries exceeded | Currently our card does not support for PIN transactions |
| ACCOUNT_NOT_FOUND | Invalid/nonexistent “To Account” specified or Invalid/nonexistent “From Account” specified or Invalid/nonexistent “Account Type” specified | Check merchant validity. |
| DOMESTIC_NOT_ALLOWED | Domestic transactions not allowed | Check merchant location. |
| INVALID_AUTH | Invalid Authorization Life Cycle | Currently our card does not support for PIN transactions |
| NOT_DECLINED | Not declined (Valid for all zero amount transactions) | Contact Monit customer service |
| PIN_VALIDATION_NOT_POSSIBLE | PIN validation not possible | Currently our card does not support for PIN transactions |
| PURCHASE_AMOUNT_ONLY | Purchase amount only | Contact Monit customer service |
| CRYPTOGRAPHIC_FAILURE | Cryptographic failure | Contact Monit customer service |
| CANNOT_VERIFY_PIN | Unacceptable PIN—Transaction Declined—Retry | Currently our card does not support for PIN transactions |
| ISSUER_DOWN | Issuer or switch inoperative | Contact Monit customer service |
| UNABLE_TO_ROUTE | Unable to route | Contact Monit customer service |
| DUPLICATE_TRANSACTION | Duplicate Transmission | Contact Monit customer service |
| SYSTEM_ERROR | System malfunction | Contact Monit customer service |
| UNKNOWN_ERROR | Unknown System Error | Contact Monit customer service |