Debit memo request has a header billing block and an item level billing block. I am assigning one milestone to the item in debit memo request and billing plan is active. So it doesnt allow me to do invoicing VF01 before I assign a billing plan. Now I assign one activity milestone in this billing plan. And now without confirmation of the milestone and w/o removal of the billing block at item level it allows to do invoicing. There is no billling block at header level in my case.
I want to control it from item level. How do I do so? Is something missing in my config?