Field IOIID (23) - FIX Protocol FIX.5.0SP2 EP240

Type: String

Unique identifier of IOI message. (Prior to FIX 4.1 this field was of type int)

Added in protocol FIX.2.7

See in: FIX.4.0, FIX.4.1, FIX.4.2, FIX.4.3, FIX.4.4, FIX.5.0, FIX.5.0SP1, FIX.5.0SP2.