Combining volume and % discounts on a single supplier
I'm working on 11.5.9. One of the users is working with a supplier the parts from which are Outside Processing items. She has already applied some volume discounts on certain items. Now she ALSO wants to apply a 2% discount on ANYthing we buy from this supplier, even if that is on top of a volume discount. Is that even possible? And if so, how, please?
Thanks,
Cas'