Picture a textile factory. Every month, late deliveries from the yarn supplier bring production to a halt. The factory owner calls, the supplier apologizes, and the same thing happens next month. The problem is not bad faith on either side. The problem is simpler: the two parties are not looking at the same numbers when they talk. One asks ‘was I late?’ and the other says ‘I thought I shipped on time.’ Without a shared measurement system, that argument never ends.
SCM, or supply chain management, means looking at the entire flow from raw material to finished product as a single whole. One of the most practical steps in that approach is building a shared set of performance indicators with your supplier. A performance indicator is simply a measure of how well something is being done. ‘How many shipments arrived on time last month?’ is one indicator. ‘What percentage of incoming goods were rejected for quality?’ is another. When both numbers sit in front of you and your supplier at the same time, the nature of the conversation changes.
The delivery indicator is the most basic one. Of all the shipments due in a given month, how many arrived by the agreed date and how many were late? Tracking this does not require a complex system. A simple spreadsheet is enough. What matters is that the supplier sees the same table and accepts the same data. The quality indicator measures how much of what arrives is actually usable: defect rates, returned quantities, rejections at incoming inspection. When these are tracked month after month, both sides can see where the trend is heading. The flexibility indicator goes one step further: when you place an urgent order, how quickly can the supplier respond? The answer tells you how reliable a partner you have when things go wrong.
Tracking these three groups of indicators together shifts the relationship from a control mindset to a collaboration mindset. In a control mindset, you monitor the supplier, find the fault, and apply a penalty. The supplier tries to hide problems. In a collaboration mindset, both sides look at the same numbers and ask ‘how do we improve this together?’ Here is a concrete example: when the quality rejection rate climbs to eight percent, a buyer working in control mode sends a firm fax to the supplier. A buyer working in collaboration mode sits down with the supplier to trace which step in production is causing the rejections. The second approach produces lasting results.
Building a shared indicator set does not have to be complicated. Start by agreeing on which indicators actually matter to both sides. Priorities differ by sector: in food, shelf life is critical; in machined parts, dimensional tolerance comes first. Then write down exactly how each indicator will be measured. When you say ‘on-time delivery,’ do you mean the date on the contract, the invoice date, or the date the goods entered your warehouse? That definition needs to be written down and agreed upon. Finally, decide who shares the data, how often, and in what format. A monthly meeting or a regularly sent file works fine. Fax is still a common tool; if you use email, a simple spreadsheet attachment gets the job done.
The biggest challenge is not technical — it is a matter of habit. Suppliers are often cautious about this kind of sharing at first. ‘Will you show this to my competitors?’ or ‘are you going to use this to put pressure on me?’ are common concerns. Saying that the indicators are a tool for joint improvement rather than punishment is not enough; you have to show it through your behavior. When a bad number appears in the first few months, asking ‘what can we do on our side to help?’ instead of blaming the supplier builds trust. In Turkey, supplier relationships still rest heavily on personal trust. Shared numbers do not replace that trust; they give it a concrete foundation and carry it beyond personal ties.
For a small or mid-sized business owner thinking about starting a shared indicator system, the right entry point is this: pick one supplier where you have the most friction, and start with just one indicator. Delivery timing is a good first choice because it is easy to measure and the results are visible. Track that single indicator together for three months and hold a short review each month. Once you see that it works, you can add more indicators and bring in other suppliers. You do not need a major software investment to begin — build the habit first, then think about tools.
This article was originally written in Turkish by Gökhan MERCANOĞLU on April 14, 2003 and has been automatically translated into English and other languages using machine translation.