The logon message authenticates a user establishing a connection to a remote system. The logon message must be the first message sent by the application requesting to initiate a FIX session.
Added in protocol FIX.2.7
See in: FIX.4.1, FIX.4.2, FIX.4.3, FIX.4.4, FIX.5.0, FIX.5.0SP1, FIX.5.0SP2, FIX.5.0SP2 EP240, FIXT.1.1.
| Field or Component | Name | Description | Is Required | Added | Is Deprecated |
|---|---|---|---|---|---|
| Block | StandardHeader | MsgType = A | Y | FIX.2.7 | |
| 98 | EncryptMethod | (Always unencrypted) | Y | FIX.2.7 | |
| 108 | HeartBtInt | Y | FIX.3.0 | ||
| 95 | RawDataLength | Required for some authentication methods | FIX.2.7 | ||
| 96 | RawData | Required for some authentication methods | FIX.2.7 | ||
| Block | StandardTrailer | Y | FIX.2.7 |