Inventory glossary
What is SKU rationalization?
SKU rationalization is the process of reviewing every product variant you sell and deciding which ones to keep, which to cut, and which to merge, based on how well they sell and how much they cost to carry.
Every SKU you stock costs money even when it is not selling. It ties up cash, takes up shelf or storage space, and adds a line to every stocktake and reorder you do. A small store with 300 SKUs where 50 of them have not sold in six months is paying rent and attention on dead stock for no return.
Use SKU rationalization on a regular schedule, not just once. Pull sales history per variant, rank by units sold and gross margin contributed, and flag anything near the bottom. Before cutting a SKU, check if it is seasonal or newly launched, since those can look slow without being bad. Then discontinue, discount, or bundle the weak performers and stop reordering them.
Example
A candle store carries 40 scent and size combinations. Over the last year, 8 of those SKUs sold a combined 15 units total while the other 32 sold 2,400 units. The owner runs SKU rationalization, discontinues the 8 slow SKUs, and stops placing purchase orders for them. Storage space freed up gets used for a new scent line that is already outselling half the old catalog in its first month.
Common mistakes
- Cutting a SKU based on one slow month instead of a full season of data.
- Ignoring gross margin and judging SKUs on units sold alone, which can keep low-margin clutter around.
- Rationalizing once and never repeating the review, letting new dead stock build up again.
SKU rationalization and SteadyShelf
SteadyShelf's per-variant sales forecasts make it easy to spot which SKUs consistently have weak demand and should be considered for rationalization, since it already tracks sales trends by SKU for reordering.
SteadyShelf is launching on the Shopify App Store. Join early access to get the install link first.
Related terms
ABC analysis · Dead stock · Obsolete inventory · Excess inventory · Demand forecasting
FAQ
How often should a small store do SKU rationalization?
Once or twice a year is usually enough for most small stores, though fast-moving catalogs like apparel may need it quarterly to keep pace with new styles replacing old ones.
Does SKU rationalization mean deleting the product from the store?
Not always. It can mean discontinuing and removing it, marking it as discontinued but keeping the listing for records, or merging it with a similar variant. The choice depends on whether you still have stock to sell through.
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