| Tag | Description |
|---|---|
| 0 | Invalid tag number |
| 1 | Required tag missing |
| 10 | SendingTime accuracy problem |
| 11 | Invalid MsgType |
| 2 | Tag not defined for this message type |
| 3 | Undefined Tag |
| 4 | Tag specified without a value |
| 5 | Value is incorrect (out of range) for this tag |
| 6 | Incorrect data format for value |
| 7 | Decryption problem |
| 8 | Signature problem |
| 9 | CompID problem |