Hi Dean,
Thanks. I had the same view as you, the customer is very reluctant to do the change. The customer uses a customized solution as a Source of Truth which interfaces with both SAP and non-SAP GTS systems. It's similar to a MDM system, where the products have the classification views by country in it. Apparently, they classify and then feed this data back to GTS as necessary paperwork gets generated out of GTS :-)
Thanks!
Shrini