Rev. 2 code 74.90 can map to more than one Rev. 2.1 class: 74.91 Patent brokering and marketing service activities, 74.99 All other professional, scientific and technical activities n.e.c., 80.09 Security activities n.e.c..
Potential impact
Datasets, CRM segments, KYC rules, reporting logic, and historical joins may need review because the activity scope is not a simple unchanged carry-over.
What to check next
Review the official explanatory notes for each target code and confirm whether the business activity still fits the suggested Rev. 2.1 class.
