Key Performance Indicator (KPI)
Definition
A key performance indicator is a quantifiable measure used to track how well a supply chain meets its objectives, such as fill rate, forecast accuracy, inventory turnover, or on-time delivery.
In Practice
Good supply chain KPIs balance three dimensions that naturally pull against each other: service (fill rate, on-time-in-full, perfect order), cost (logistics cost per unit, total supply chain cost), and capital (inventory turns, days of inventory, cash-to-cash). Tracking only one dimension invites gaming: maximize service alone and inventory balloons; minimize inventory alone and customers walk.
For a planner, KPIs work best as a connected tree. Forecast accuracy drives safety stock, which drives inventory days, which drives working capital; on-time supplier delivery drives production adherence, which drives customer OTIF. Understanding these linkages turns a red metric into a root-cause investigation instead of a blame exercise.
Discipline matters more than dashboard polish: clear definitions (is on-time measured against the original promise or the latest one?), consistent data sources, and a regular review cadence with owners and actions. A handful of well-run KPIs beats fifty numbers nobody trusts or acts on.
Related Calculators
Related Terms
The target probability of not stocking out during a replenishment cycle, or more broadly the standard of product availability promised to customers. It is the key input for sizing safety stock.
Perfect OrderA perfect order is one delivered complete, on time, damage-free, and with accurate documentation. The perfect order rate multiplies these components together, making it one of the most demanding measures of fulfillment quality.
SCOR ModelThe SCOR model (Supply Chain Operations Reference) is a standard framework that describes supply chain processes, metrics, and best practices, organized around Plan, Source, Make, Deliver, Return, and Enable.
Cash-to-Cash CycleThe cash-to-cash cycle measures the days between paying suppliers for materials and collecting cash from customers for the finished product. It equals days of inventory plus days of receivables minus days of payables.