TagField NameData TypeDescriptionDepr.Valid values
22IDSourcechar

Identifies class of alternative SecurityID

1=

CUSIP

2=

SEDOL

3=

QUIK

4=

ISIN number

5=

RIC code

Used in messages:
[Advertisement] [Allocation] [Execution Report] [Indication of Interest] [Order - List] [Order - Single] [Order Cancel Request] [Order Cancel/Replace Request] [Quote] [Quote Request]