Dozens of indicators can be measured in the supply chain. Dashboards are often overflowing with colorful graphs, complex ratios, and impressive metrics.
But in reality, things are simpler.
A good KPI isn’t just for show. It’s there to trigger action. If it doesn’t prompt correction, adjustment, or a decision, it’s useless.
Over the years, I’ve learned to focus on the indicators that have a direct impact on cash flow, customer service, and operational stability. The ones that quickly reveal whether the machine is running smoothly… or if it’s starting to splinter.
First, the service level. It’s the immediate reflection of the promise made to the customer. A solid OTIF (On-Time In-Flight) means that forecasting, purchasing, inventory, and order fulfillment are working in harmony. As soon as it drops, it’s a warning sign.
Inventory accuracy is just as critical. A system might display 10,000 units in stock. If there are physically 8,000 items remaining, the entire plan becomes flawed. An inventory slippage always ends up being costly, resulting in stockouts or overstocking.
The overall inventory level deserves constant attention. Too low, and the service becomes unstable. Too high, and capital is tied up. The goal isn’t to have a lot of stock, but to have the right amount.
Inventory turnover allows you to see if products are actually moving. Slow turnover often masks forecasting errors or SKUs that have become obsolete.
The value of excess and obsolete inventory is an indicator I monitor closely. It’s idle money, sometimes irrecoverable. The longer you wait, the greater the loss becomes. Actual lead times compared to theoretical lead times are crucial. Many companies plan with optimistic lead times. The reality on the ground is often different. This discrepancy creates unnecessary stress throughout the supply chain. The reliability rate of suppliers directly influences the stability of operations. Delays, incomplete quantities, inconsistent quality… an unstable supplier impacts everything else.
The cost of transport per unit or per order quickly reveals problems: price increases, poor consolidation, unsuitable shipping methods. Transport can easily eat into margins if left unchecked.
The total logistics cost as a percentage of sales provides a comprehensive overview: warehousing, handling, transport, packaging. If this ratio increases without a proportional increase in revenue, further investigation is warranted.
Warehouse productivity, measured by lines prepared per hour or orders processed per employee, helps identify operational inefficiencies. A well-structured warehouse is quickly reflected in these figures.
The picking error rate is an often underestimated indicator. Each error generates a return, a credit, customer dissatisfaction, and additional work. Operational quality is measured here.
Finally, the cash-to-cash cycle remains one of the most strategic indicators. It measures the time between supplier payment and customer payment. The shorter the timeframe, the more financially stable the company.
These indicators aren’t flashy. They aren’t complex. But together, they tell a very clear story: the true health of the supply chain.
A high-performing supply chain isn’t based on sophisticated dashboards. It’s based on daily discipline. Observe. Analyze. Adjust.
Companies that master their KPIs make better decisions. They react faster. They protect their margins. They serve their customers better. Logistics performance isn’t guessed. It’s measured. Every day.
