On time shipment rate - short definition
Die On Time Shipment Rate is a logistics KPI and measures how many orders leave the warehouse within the promised shipping time window. What is meant is whether orders were processed, packaged and handed over to the carrier on time.
In short: The key figure shows how reliably your fulfillment ships on time.
Why is the on time shipment rate important?
The On Time Shipment Rate has a direct impact on customer satisfaction, delivery expectations and brand trust. When a shop communicates “ship today” or “delivery in 1-2 business days,” operational performance must fulfill this promise.
A weak rate often results in:
- late deliveries
- more support requests
- falling repurchase rate
- worse reviews
- higher pressure in warehouse operation
In e-commerce in particular, on-time delivery is often no longer a bonus, but a standard expectation.
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How is the on time shipment rate measured?
The key figure measures the proportion of orders that were shipped on time within the defined shipping time window.
Typical formula:
Orders shipped on time ÷ total number of relevant orders × 100
The following data is often used for this purpose:
- receipt of order in the shop or OMS
- Defined Cut-off time
- Date of order approval
- Label creation timestamp
- actual Carrier-Handover
- Shipping status in WMS
It is important that what is considered “on time” is clearly defined internally.
What is a good on time shipment rate value?
A good value is consistently high and stable — even during weekends, launches, sales campaigns or seasonal peaks. It's not just the monthly average that counts. The decisive factor is whether the quota remains stable even on days with high order volumes. In short: Stark is not only fast, but also reliably fast.
Typical causes of poor on time shipment rate values
When the quota falls, this is usually due to operational bottlenecks or weak process management.
Common causes:
- Too late picking
- lack of personnel capacity
- unclear prioritization
- late carrier pickup
- technical interface errors
- manual approval processes
- poor cut-off planning
- too many special cases in packing
- Peak volume without preparation
Often the problem is not one big mistake, but many small delays.
How can the on time shipment rate be improved?
The biggest levers lie in planning, transparency and process speed.
Key measures:
- Define clear cut-off times
- Prioritize orders early
- Speed up pick & pack processes
- Optimize carrier pickup times
- Use real-time dashboards
- Plan peak days better
- use automatic order approvals
- Analyze bottlenecks on a daily basis
Even a few minutes of time saved per order can significantly improve the quota.



