when we are trying to add the single dept to a tree its giving the error message but its allowing us

User always been able to add a range of departments (that was our work around), but not the individual departments one at a time (we don’t always want to add a range for certain BUs). We user try adding dept. 111101 to BU 00352 and got the same error:

could you pls let me know what need to be done.

Regards

Allluri