Issue description: I create a new product category ZTESTJERRY3:

However, it does not appear in “Not assigned” group range when I try to specify its number range logic via tcode COMCMATERIALID:

I also check the database table and the new category ZTESTJERR3 is missing there too.

The trick here is, to make the new product category appear as you expect, you SHOULD not use tcode COMCMATERIALID directly, instead you

have to enter that transaction via SPRO below:

Only by doing this, the number range elements can have an opportunity to be refreshed, see callstack below.

my new product category ZTESTJERRY3 is inserted into database table COMM_PRMAT_NREL here.