Rev. 2 code 28.21 can map to more than one Rev. 2.1 class: 28.21 Manufacture of ovens, furnaces and permanent household heating equipment, 28.25 Manufacture of non-domestic air conditioning equipment.
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.
