Field BeginString (8) - FIX Protocol FIX.4.4

Type: String

Identifies beginning of new message and protocol version. ALWAYS FIRST FIELD IN MESSAGE. (Always unencrypted)

Added in protocol FIX.2.7

See in: FIX.4.0, FIX.4.1, FIX.4.2, FIX.4.3, FIX.5.0, FIX.5.0SP1, FIX.5.0SP2, FIX.5.0SP2 EP240, FIXT.1.1.

Used in components