Hi, Shrini:
Thanks for your reply. Yes, in our company both HTSEU and HTSDEE are active for ATLAS. As you said, there is only one active numbering scheme for each legal regulaton so user can only mass maintain HTSDEE for Atlas in our case.
We found one workaround solution to solve this issue. As HTSEU is also assigned to other EU legal regulation like CUSDK, user can select legal regulation CUSDK to maintain HTSEU numbering scheme for product while doing mass classification then HTSEU numbering scheme will be automatically determined by SAP
Thanks