How do I measure first-attempt delivery success rate for a courier fleet?
First-attempt delivery success is the number of deliveries completed on the first attempt divided by total deliveries attempted, multiplied by 100. It shows how often a driver can hand over goods without a failed visit or return trip.
It matters because every failed attempt adds cost: extra kilometres, time, re-scheduling and sometimes customer dissatisfaction.
Commonly misread:
- Counting a delivery to a neighbour or safe place as the same as a signed handover.
- Not recording the failure reason, so you cannot tell whether the cause is address quality, customer absence or access problems.
Capture reason codes such as no access, customer not available, wrong address and refused. Cost per successful drop includes the cost of failed attempts, so track both measures together.
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