SKU Rationalization
Definition
The systematic review of the product portfolio to prune SKUs that add complexity without sufficient sales, margin, or strategic value. It reduces the long tail that consumes inventory, space, and planning effort.
In Practice
Every SKU carries a hidden overhead: its own safety stock, minimum order quantities, storage slots, count effort, and forecast error. Portfolios grow through launches, customer specials, and packaging variants, but rarely shrink on their own. Rationalization is the deliberate counterweight, typically run annually or after acquisitions.
The analysis goes beyond revenue rank. A good review scores each SKU on margin contribution, growth, substitutability, strategic role such as traffic drivers or contractual items, and true cost to serve including inventory. Candidates are then discontinued with a run-out plan so cuts do not simply convert into obsolete stock.
Example: a beverage company finds 30 percent of its 1,200 SKUs generate 2 percent of revenue. It discontinues 280 items, migrating customers to close substitutes, and within three quarters frees 8 percent of warehouse space, cuts changeovers, and reduces total safety stock by 1.4 million dollars.
Related Calculators
Related Terms
Stock Keeping Unit: a unique identifier for a distinct item that is stocked, tracked, and sold, defined by attributes such as size, color, and pack configuration. Each variation that must be counted separately gets its own SKU.
ABC AnalysisA method of segmenting inventory into classes by value or importance, typically with A items representing the small fraction of SKUs that drive most of the value. It focuses management attention where it matters most.
Dead StockInventory with no recorded sales or usage over an extended period and no realistic expectation of future demand. It occupies space and capital while generating no return.
Slow-Moving InventoryStock that sells or is consumed at a much lower rate than expected, sitting in the warehouse far longer than average. It still has demand, unlike dead stock, but turns too slowly to justify its inventory level.