Code to identify reason for a session-level Reject <35=3> message.
| Code | Meaning | 
|---|---|
| 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 |