Warehouses
Receiving, picks, and the inventory number someone still reconciles by hand.
Receiving, slotting, and the pick list often live in different tools, with a spreadsheet that decides which number is real. The first version should follow that morning's work: what arrived, what shipped, and the exception that does not match.
Reports for billing and stock should come from those events. When the floor changes how a count works, the edit is a revision of that flow, not a new product tier.