How do I build an item hierarchy for loose items?

Apples sold by weight packed in a box

  • Base unit: Box of apples
  • Case: No case level if the boxes are on a pallet
  • Pallet: Pallet with a number of boxes

Baking potatoes sold individually packed in a box

  • Base unit: One unpacked baking potato
  • Case: Box of baking potatoes
  • Pallet: Pallet with a number of boxes

Baking potatoes sold by weight and packed in a box

The boxes are on a half pallet and the half pallet is on a full pallet

  • Base unit: Box of baking potatoes
  • Case: The half pallet
  • Pallet: Full pallet with half pallet on