planned order for packaging material

Hi, I need to achieve this scenario:

our company buys 2000 UN of material A that arrives to our installations in containers. Once in our installations this material must be packed in pallets that are produced in our factory. For 2000 UN of material A we need 200 pallets, so I need know with sufficient anticipation te number of pallet to produce. There is some way for which the purchase order or the inbound delivery of material A generates a planned order of pallets?.

Thanks in advance.