Tolerance group has no user assignment for company code

Hello experts,

We person the pursuing problem:

We person the "Phys.inv.tolerance group" 0001, present we wanted to alteration the column: “Difference magnitude per phys. Inv. position”, which is unluckily not possible. So we person created a caller group: Z001
Unfortunately, this radical cannot beryllium saved without entering a idiosyncratic successful the idiosyncratic duty to make the group.
To effort it out, I assigned a user, but present I can't get it out.
A idiosyncratic duty is not desired.

I person work that a idiosyncratic duty is not indispensable and nary idiosyncratic was assigned successful the erstwhile radical until now.

Best regards,

Marco