OTIF (On Time In Full) is a service-level metric that measures the share of orders delivered both on the promised date and in full. A delivery only counts as successful if it meets both conditions at once: no delay and nothing missing. OTIF is the most honest measure of whether a promise to the customer was kept, because it doesn't settle for half a success.
How OTIF is measured
OTIF combines two dimensions. The “On Time” part checks that the order arrives on the agreed date. The “In Full” part checks that it's complete: every line, every quantity. An order that's late but complete, or on time but incomplete, fails OTIF. In formula terms: OTIF = orders delivered on time and in full ÷ total orders. This combined requirement is what makes the metric demanding: a good line fill rate can hide a much lower order-level OTIF.
Managing OTIF in an SME
Used well, OTIF isn't about assigning blame but about revealing where the promise breaks down: forecasting, stock availability, picking, or transport. Failures are broken down by cause, and the most frequent cause is fixed first. OTIF is a typical metric for the “execution” layer of the Two-Layer Model: it measures whether operations actually deliver what the sales decision promised, closing the loop between the two layers.
When to adopt OTIF
As soon as an SME serves customers who expect reliability and completeness (distribution, manufacturing, demanding B2B customers), OTIF becomes more meaningful than a simple on-time delivery rate. It aligns the entire chain on the one thing that matters to the customer: receiving what they ordered, when they were promised it.
The common mistake
The most frequent misinterpretation is measuring “On Time” and “In Full” separately and stopping there. Each can show a good score while the real OTIF, which requires both at once, is noticeably lower. The other mistake is using a vague definition of “on time”: without a clear, shared reference date, the metric becomes unverifiable and loses all value for managing performance.
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Frequently asked questions
What does OTIF mean?
OTIF stands for On Time In Full: the share of orders delivered both on the promised date and in full, with no delay and nothing missing.
How is OTIF calculated?
Only orders that are both on time and complete count as successful; an order that's late or incomplete counts as a failure.
Why is OTIF stricter than an on-time delivery rate?
Because it requires both conditions at once; good “on time” and “complete” scores taken separately can still produce a much lower real OTIF.