Rev. 2 code 42.9 can map to more than one Rev. 2.1 class: 42.9 Construction of other civil engineering projects, 68.1 Real estate activities with own property and development of building projects.
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.
