Vending Machine Sales Mix: Compare Revenue, Units and Availability Before Changing the Range

01   /   BUYER NOTES

Choose the decision before choosing the chart

An assortment review can answer different questions: which products deserve more space, which tie up stock, or which meet a customer need that the rest of the range misses. Decide the question first. A ranking designed to explain sales revenue may not tell you which selection is most likely to run out before the next refill.

Use one clearly defined period and machine scope. Comparing a product launched halfway through the month with an established item over the full month can produce an unfair ranking. Note when products entered or left the range and whether the site had closures or unusual events.

For example, a premium gift may lead revenue while a low-priced drink leads units. Neither result is contradictory. The gift contributes more value per purchase, while the drink may require more replenishment. The useful decision depends on whether the operator is reviewing income, physical capacity or service workload.

02   /   BUYER NOTES

Read unit sales and revenue together

Unit sales show product movement under the report’s definition. Revenue adds the effect of price, discounts and potentially other reporting conventions. Confirm how the platform treats refunds and cancelled transactions before comparing figures. Keep gross and net values distinguishable rather than assuming every sales column uses the same basis.

Look at products within meaningful groups as well as across the cabinet. A bottled drink and a boxed collectible serve different needs and occupy different amounts of space. A single ranking can hide those differences. Grouping helps the operator identify choices within a category without assuming that every low-volume item should become another drink selection.

Avoid using revenue alone as a profit measure. If margin information is included, confirm the product cost method and the costs omitted from the calculation. A high-revenue product can still require expensive handling or generate substantial waste. Keep those factors visible in the decision rather than burying them in a separate report nobody reviews.

03   /   BUYER NOTES

Check whether the product was available to sell

A low recorded total may reflect stockouts or a disabled selection rather than weak demand. Review the relevant refill and availability records. If reliable out-of-stock duration is not available, say so and use observations cautiously. Do not manufacture a precise lost-sales estimate from incomplete information.

A product selling out soon after every refill may deserve more capacity or a different service schedule. Before adding space, check whether the existing selection was loaded correctly and whether the recorded capacity matches the real pack. An operational issue can look like a demand opportunity until the shelf is inspected.

Keep temporary events separate from the normal pattern. A tournament, conference or hot-weather period may change the mix substantially. Use that evidence for event planning, but review ordinary trading before making a permanent assortment decision.

04   /   BUYER NOTES

Connect performance to space and stock handling

Review the physical space, usable capacity and product shelf life alongside the sales figures. A large pack can occupy substantial cabinet space even when its unit count is modest. A perishable product may need a tighter refill quantity despite healthy demand. There is no single ranking that removes these practical constraints.

Consider whether a slow-moving item provides a useful choice, such as a specific product format requested by regular customers. Keep that reasoning explicit and proportionate to the location. Maintaining a choice can be a deliberate service decision, but it should not become an excuse to ignore expired stock or repeated waste.

05   /   BUYER NOTES

Make one documented change and review the result

Choose a limited change with a clear reason: add capacity, adjust refill timing, improve the description or replace a product. Record the effective date and the measures you will review. Several simultaneous changes make it harder to understand which one affected the result.

At the next review, compare similar trading conditions and note remaining uncertainty. Check availability as well as sales so an apparent improvement is not simply the result of keeping the selection stocked for longer. That may still be a valuable improvement, but describing it accurately helps the team repeat what worked.