Most procurement teams have a gut feeling about which suppliers are good and which aren't. But when it's time to renegotiate a contract, justify switching suppliers, or present to management — gut feeling isn't enough. You need data.
Here are the metrics that actually matter, why they matter, and how to track them.
The most fundamental supplier performance metric. Of all the deliveries a supplier made in a given period, what percentage arrived on or before the confirmed delivery date?
Formula: (On-time deliveries / Total deliveries) × 100
Benchmark targets:
The average number of days between when you place an order and when it's delivered. This helps you plan better and compare suppliers who offer the same products.
Track this per supplier so you can make smarter ordering decisions — ordering from Supplier A 2 weeks out vs Supplier B who needs 5 weeks.
Of all completed orders from a supplier, what percentage resulted in a quality claim, return, or complaint?
Formula: (Claimed orders / Total delivered orders) × 100
A supplier with a high claim rate might have great delivery times but terrible quality consistency. Both metrics together give you the full picture.
How quickly and reliably does the supplier confirm your purchase orders? A supplier who takes 5 days to confirm creates uncertainty in your planning. Track the percentage of orders confirmed within your agreed timeframe.
How often does the final invoice differ from the agreed purchase price? Frequent price variances create extra work for your finance team and erode trust.
| Metric | What it measures | Red flag threshold |
|---|---|---|
| On-time delivery | Reliability | Below 80% |
| Average lead time | Speed | Significantly above market |
| Claim rate | Quality | Above 5% |
| Confirmation time | Responsiveness | Over 48 hours |
| Price variance | Accuracy | Any recurring variance |
Supplier performance data is most valuable when used proactively — in quarterly or annual supplier reviews. When you sit down with a supplier and show them their own on-time delivery rate has dropped from 92% to 71% over the past 6 months, the conversation changes completely.
You're no longer complaining based on memory. You have facts. And facts lead to better outcomes — either the supplier improves, or you have documented justification to replace them.
You don't need complex software to start. Even a simple spreadsheet where you note the confirmed delivery date and actual delivery date for each order will give you on-time delivery rate within a few months. The key is consistency — tracking every order, not just the memorable ones.
ProclyApp gives you a real-time dashboard for all your purchase orders, supplier performance and delivery tracking — from €5/month.
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