I've scenario like Normally I've followed no.ranges In OM like Internal now my client is asking me now make it internal into external ranges But that field has been graded out like display mode.
Let me explain you briefly:
My client I've has created 50000004 and later by mistake no has been deleted and again when my client is going to create same no 50000004 it is showing no ranges not in external.
Now I would like to change that no ranges into external how can I do.............!
Please help me out....