OOS (Out of Stock)
Category: Inventory
Also searched as: OOS
Definition (plain English)
OOS means a SKU, batch, size, or channel has no available stock to fulfill current demand.
Why it matters commercially
Out-of-stock events affect lost sales, customer trust, retailer scorecards, emergency replenishment cost, and whether inventory planning rules are working.
Example
A distributor marked the SKU OOS after a vessel delay, then moved limited safety stock to the highest-penalty customer while waiting for the container.
Common mistake
Reporting OOS only after orders fail instead of tracking available-to-promise stock, inbound ETA, allocations, and reorder-point triggers.
Use this in CommerceKit
Freight Cost Per Unit Calculator
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