| Code | Short Message | Long Message |
| 26101 | Transaction refused | Expired card |
| 26102 | Transaction refused | Suspected fraud |
| 26103 | Transaction refused | Card Acceptor contact acquirer |
| 26104 | Transaction refused | Restricted card |
| 26106 | Transaction refused | Allowable PIN Tries exceeded |
| 26107 | Transaction refused | Refer to Card Issuer |
| 26109 | Transaction refused | Invalid Merchant |
| 26110 | Transaction refused | Invalid Amount |
| 26111 | Transaction refused | Invalid card number |
| 26112 | Transaction refused | PIN data required |
| 26114 | Transaction refused | No account of type requested |
| 26114 | Transaction refused | Requested Function not supported |
| 26116 | Transaction refused | Not sufficient funds |
| 26117 | Transaction refused | Incorrect PIN |
| 26118 | Transaction refused | No card record |
| 26119 | Transaction refused | TR not permitted to the customer |
| 26120 | Transaction refused | TR not permitted to the terminal |
| 26121 | Transaction refused | Exceeds withdrawal amount limit |
| 26122 | Transaction refused | Security violation |
| 26123 | Transaction refused | Exceeds withdrawal frequency limit |
| 26125 | Transaction refused | Card not effective |
| 26126 | Transaction refused | Invalid PIN block |
| 26127 | Transaction refused | PIN length error |
| 26128 | Transaction refused | PIN key synch error |
| 26180 | Transaction refused | Redemption denied by Loyalty |
| 26181 | Transaction refused | Card blocked |
| 26182 | Transaction refused | Account blocked |
| 26185 | Transaction refused | Product(s) not allowed |
| 26186 | Transaction refused | Allowable PIN tries exceeded |
| 26187 | Transaction refused | Previous PIN used |
| 26188 | Transaction refused | PIN change required |
| 26190 | Transaction refused | Transponder is blocked |
| 26191 | Transaction refused | Unknown transponder |
| 26192 | Transaction refused | Illegal challenge response |
| 26200 | Transaction refused | Do not honor |
| 26201 | Transaction refused | Expired card,capture |
| 26202 | Transaction refused | Suspected fraud |
| 26203 | Transaction refused | Card acceptor contact acquirer |
| 26204 | Transaction refused | Restricted card |
| 26206 | Transaction refused | Allowable PIN tries exceeded |
| 26208 | Transaction refused | Lost card |
| 26209 | Transaction refused | Stolen card |
| 26289 | Transaction refused | Phone call |
| 26290 | Transaction refused | Disabled application |
| 26291 | Transaction refused | Type of site not allowed |
| 26292 | Transaction refused | Zone not allowed |
| 26293 | Transaction refused | Period not allowed |
| 26294 | Transaction refused | Technical control |
| 26295 | Transaction refused | Product limit exceeded |
| 26296 | Transaction refused | Fraud suspicion, capture |
| 26297 | Transaction refused | Opposition, without capture |
| 26298 | Transaction refused | Opposition, capture |
| 26299 | Transaction refused | Disabled client |
| 26904 | Transaction refused | Format error |
| 26906 | Transaction refused | Cutover in progress |
| 26907 | Transaction refused | Card issuer or switch inoperative |
| 26909 | Transaction refused | system malfunction |
| 26911 | Transaction refused | Card issuer timed out |
| 26912 | Transaction refused | Card issuer unavailable |
| 26916 | Transaction refused | MAC incorrect |
| 26917 | Transaction refused | MAC key synch error |
| 26921 | Transaction refused | security software/hardware error - no action |
| 26922 | Transaction refused | message number out of sequence |