You use the Stockkeeping Unit table to record information about your stockkeeping units.
Stockkeeping units do not replace item cards, but they are related to them. Stockkeeping units allow you to differentiate information about an item for a specific location (such as a warehouse or distribution center) or a specific variant (such as different shelf numbers and different replenishment information), for the same item.
It is important to note that the information on the Stockkeeping Unit card has priority over the Item card.