Ask ten supply chain leaders what a control tower is and you will hear ten answers: a room, a dashboard, a planning tool, a team. The definition that has held up across the organizations we have worked with is simpler. A control tower is the place where the end-to-end processes of the supply chain are measured the same way, where each process has an owner, and where exceptions reach that owner before the monthly review.
That definition puts the hard work where it belongs: in deciding which processes to measure and how. In our experience there are seven, and they are the same in consumer goods, medical technology and industrial manufacturing.
The seven processes and the one number each needs
- Idea to launch. How long it takes to turn an approved product idea into a SKU that can be ordered. Headline KPI: time to market, in weeks.
- Forecast to plan. Whether the demand plan is close to what customers actually buy. Headline KPI: forecast accuracy by horizon.
- Source to pay. Whether suppliers deliver what was agreed and are paid on the terms that were agreed. Headline KPI: supplier on-time delivery, with payment terms alongside.
- Plan to produce. Whether plants deliver the plan at standard cost. Headline KPI: schedule adherence, with overall equipment effectiveness beneath it.
- Order to cash. Whether orders are delivered complete and on time, invoiced correctly and collected. Headline KPI: on time in full, with deductions and days sales outstanding beneath it.
- Deliver to serve. What it costs to serve each customer and channel. Headline KPI: cost to serve, with load utilization and returns beneath it.
- Record to report. Whether the books close on time with numbers nobody disputes. Headline KPI: inventory days and close duration.
Each process gets one headline KPI on the first page and the supporting measures beneath it. Leaders who want more can drill down; leaders who want the state of the chain in one glance get it.
One definition, agreed before the build
Most control tower programs stall on definitions, not technology. Is an order on time when it ships or when it arrives? Is inventory counted at standard cost or at the last purchase price? Does cost to serve include trade spend? These questions are settled by the process owners in the first weeks, written down, and built once into the data model. From then on every report, every alert and every AI assistant reads the same definition.
Exceptions are routed, not reported
A dashboard that turns a tile red has done half the job. The other half is deciding who acts, by when, and how the control tower knows it was done. The rule we apply: every headline KPI has a threshold, every threshold breach has a named owner, and the breach reaches that owner the same day through the tools they already use. The monthly review then looks at exceptions that were resolved and those that were not, instead of discovering them.
What changes in the first quarter
The visible change is a single page that the executive team trusts. The important change is behavioural: planners, plant managers and customer service start the week from the same exception list, the finance team stops rebuilding inventory numbers, and the debate moves from whose number is right to what to do about it.
Where to start
Start with order to cash and forecast to plan. They touch the most people, their data is usually the most complete, and an improvement in on-time delivery or forecast accuracy is visible to customers within a quarter. Add the remaining processes one at a time, each with its owner, its definition and its routing rule, until the tower covers the chain.