Number range interval error: Asse classes

Hi: On my current project, there is an existing chart of Dep. assigned a new company code. I have assigned a new company code to this chart of dep. However, when I go to define number range intervals for my new company code, I get error " Company code does not exist."

I am not even able to copy number range intervals from existing to new company code. Please help me figure out what's wrong.

Thanks,

QuinB