Unique identifier for a News message.
Valid values:
| '1' | ICB (Industry Classification Benchmark) published by Dow Jones and FTSE - www.icbenchmark.com . |
| '2' | NAICS (North American Industry Classification System). Replaced SIC (Standard Industry Classification) naics www.census.gov/naics or www.naics.com . |
| '3' | GICS (Global Industry Classification Standard) published by Standards and Poor. |
Used in: