| 0 | Successful |
| Payment | |
| 1000 | Request OK but payment not successful |
| 1001 | Authorization declined |
| 1002 | Refund declined |
| 1003 | Capture failed |
| 1004 | Request declined by 3rd party |
| 1005 | Authorization pending |
| 1006 | Declined |
| 1007 | Maximum account balance reached |
| 1008 | Maximum daily spending limit reached |
| 1009 | Card expired |
| 1010 | Amount exceeds maximum threshold set by the scheme |
| 1011 | Card blocked by issuer |
| 1012 | Insufficient funds |
| 1013 | Payment exceeds amount limit |
| 1014 | Payment exceeds frequency limit |
| 1015 | Amount is below minimum limit |
| 1016 | Amount is invalid |
| 1017 | Refund pending |
| 1400 | No capture exists for transaction |
| Consumer | |
| 2000 | Consumer has expired cards |
| 2001 | Consumer cancelled the transaction |
| 2002 | Consumer has expiring cards |
| 2003 | Merchant cancelled the transaction |
| Identification | |
| 10000 | Identifier not found |
| 10001 | Loyalty not found |
| 10002 | Identity not found |
| 10003 | Invalid verification code |
| 10004 | No identity transactions found |
| 10005 | Accepted — signature is not valid |
| 10006 | No payment instruments found |
| 10007 | Merchant configuration is incomplete |
| 10008 | Incorrect PIN |
| 10009 | Too many incorrect PIN attempts |
| 10010 | Request not supported by acquirer |
| 10100 | Search successful — no results found |
| 10110 | Request validated, but one or more elements not accepted (see responseInfo per element) |
| 12020 | Accepted — not ready to respond, retry later (see Retry-After header) |
| Format errors | |
| 20000 | Bad format — mobile number |
| 20001 | Bad format — email |
| 20002 | Bad format — date |
| 20003 | Invalid JSON |
| 20004 | Invalid filter |
| 20005 | Bad format — validity duration |
| 20006 | Bad format — message text |
| 20007 | Invalid source argument |
| 20008 | Invalid argument |
| 20009 | Bad format — account number |
| 20010 | Bad format — pay card |
| 20011 | Bad format — identifier ID |
| 20012 | Bad format — SSN / NIN |
| 20013 | Bad format — birth date |
| 20014 | Bad format — PID |
| 29999 | Other bad formatting |
| Request errors | |
| 30000 | Missing required field |
| 30001 | Missing required header |
| 30002 | Invalid header |
| 30003 | Unknown identifier type |
| 30004 | Bad request to IPG |
| 30005 | Net amount + tax amount ≠ gross amount |
| 30006 | Customer verification data not valid |
| 30007 | Customer has no wallet reference |
| 30008 | Customer has withdrawn consent to payment instrument |
| 30009 | Only one identifier with this type is allowed |
| 30010 | Requested capability not active for customer |
| 39999 | Other bad request |
| Client errors | |
| 40000 | Resource not found |
| 40001 | Resource already exists |
| 40002 | Unsupported media type |
| 40003 | Method not allowed |
| 40004 | Unauthorized |
| 40005 | Precondition failed |
| 40006 | Forbidden |
| 40007 | Forbidden — inconsistent data |
| 40008 | Forbidden — missing write access |
| 40009 | Too early |
| 40010 | Forbidden — authenticated subject is not the expected subject |
| 40800 | Request timeout — could not complete within the allowed timeframe |
| 49999 | Other client error |
| Server errors | |
| 50000 | Internal error |
| 50100 | BankID error |
| 50200 | IPG server error |
| 50300 | Service unavailable |
| 50310 | FREG service unavailable |
| 50400 | Gateway timeout — identity not available |
| 50420 | Gateway timeout — payments not available |
