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On-Time Delivery Root-Cause Calculator
A missed delivery is never one thing — material shortage, capacity, supplier delay, and a handful of other causes each show up identically as a single red data point. Enter your last period's numbers below for an instant OTD rate, a benchmark comparison, and an illustrative dollar breakdown by cause.
Your last period
Defaults reflect a common discrete-manufacturing pattern. Adjust to your own mix if you know it -- must total 100%.
Your breakdown
Enter your total and late order counts to see your OTD rate, benchmark gap, and root-cause breakdown.
How this is calculated
OTD rate is (total orders − late orders) ÷ total orders. The dollar-impact breakdown multiplies your late-order count by your average order value and your entered root-cause split -- a rough, order-of-magnitude estimate, not a real attribution. Real root-cause attribution requires reason codes and promise-date history from your actual ERP records, categorized order by order, including orders you rescued with premium freight or overtime rather than let go late -- which this quick calculator can't see and no self-reported split can substitute for. That's what a real Operations Intelligence read against your own data gets you.
Why the root cause matters more than the rate
A material-shortage-driven miss and a capacity-driven miss both show up identically on an OTD dashboard — one red data point. But the fix for one is a safety-stock or supplier-lead-time conversation, and the fix for the other is a scheduling or capacity-investment conversation. Material shortages alone are estimated to drive roughly 20–30% of late deliveries industry-wide.
This calculator gives you a fast, self-reported estimate based on the split you enter. The breakdown that actually holds up has to come from your own ERP's reason codes and promise-date history — including the orders you rescued with premium freight or unplanned overtime, which never show up in the rate at all.
For the full argument — why OTD is really a working-capital metric wearing an operations costume, and the two OTD numbers hiding in most ERPs that quietly disagree — read Your On-Time Delivery Rate Doesn't Tell You Where the Money Is Actually Going.
Want the real breakdown, not an estimate?
A read-only read against your own ERP's order, job, and tooling records gets you a real root-cause, dollar-quantified attribution — including rescued orders, not just misses.
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