Make replenishment
part of the design.

Make the assumptions visible

A stock estimate is useful when someone else can understand how it was made. Begin with the number of access points, expected requests per day at each point, items per request and the period between refills.

Use an estimate you can explain. An early pilot can start with a working assumption, then replace it with observed aggregate demand.

Plan for each location

Busy and quiet locations may need different arrangements. The website planner assumes the same demand at every point. If demand differs substantially, run a separate estimate for each group of similar locations.

Allow a defined reserve

A reserve is an explicit addition to the expected usage between refills. It can help frame a discussion about demand variation and missed refill visits. The right allowance depends on the setting; the example percentage is not a universal recommendation.

Separate stock from device capacity

The supplies needed between refills may exceed what one device can hold. A stock estimate does not decide device count or capacity. Compare the estimate with the actual configuration and consider more frequent refills or an adjusted operating plan where needed.

Review the routine, not only the number

Check who has access to storage, when a refill can take place and what happens during weekends, holidays or staff absence. Decide how an empty point is reported and how someone can obtain support.

Learn and adjust

Review aggregate use and empty-stock events. If a location repeatedly runs out or carries excess stock, revisit the assumptions. Keep handling and storage consistent with the consumable supplier’s guidance.