Tag 23
IOIid
Abbreviation:
Description
Unique identifier of IOI message.
(Prior to FIX 4.1 this field was of type int)
Wire Format & Usage Example
Single field (key=value)
23=EXAMPLE
In a FIX message (NewOrderSingle)
8=FIX.4.4 | 9=... | 35=D | 49=SENDER | 56=TARGET | 34=1 | 52=20240101-09:30:00.000 | … | 23=EXAMPLE | … | 10=...
Fields are delimited by SOH (ASCII 0x01), shown here as " | ". The highlighted field 23=EXAMPLE is this field's position in the message.