KPIs

What KPIs achieve

Key performance indicators are condensed figures that make a situation measurable. They replace gut feeling with a value that can be compared over time and across groups. The benefit does not come from the figure itself but from the comparison: with last month, with the same group a year ago, or with a target set beforehand.

Why fewer bring more

The most common wrong turn is a list that is too long. A report with forty values does not get read, and when it is read the attention for the two values that matter is missing. Four to six figures are enough to steer a shop.

The second mistake is the missing connection between values. A single figure says little. Only in a pair does a statement emerge: revenue and contribution margin together show whether growth brings money. Visitor numbers and conversion rate together show whether a decline comes from traffic or from the page.

The values that belong together

• Traffic and conversion: visitors and purchase rate explain where a change comes from.
• Revenue and contribution margin: together they show whether a gain also brings a result.
• Basket value and orders: together they separate whether fewer purchases or smaller baskets are the problem.
• New and returning customers: together they show whether growth comes from acquisition or from retention.
• Advertising cost and orders: together they produce the cost per order, the decisive advertising figure.

Where KPIs mislead

The first trap is the average. An average of new and returning customers describes nobody and hides both groups. The second trap is the short period. Daily values swing strongly with small numbers, and anyone reacting to them steers the noise. The third trap is the definition. When two reports calculate the conversion rate differently they contradict each other without anything having changed.

The fourth trap is the figure without an owner. A number that belongs to nobody and produces no decision should be removed from the report, even when it looks interesting.

How values become actionable

Three rules turn figures into steering. First, every figure gets a target and a comparison period, otherwise the yardstick is missing. Second, every figure gets a responsible person, otherwise it stays without consequence. Third, the analysis happens on a steady rhythm and on the same cut off date, otherwise two periods are not comparable. A monthly look with clear targets brings more than a daily dashboard nobody reads.

Frequent questions

• How many figures should I keep? Four to six for steering, more only for reference.
• Is a report from the shop enough? Usually not, because contribution margin and advertising cost come from other sources.
• What do I do about contradictory figures? Check the definitions first, then the origin of the data.