Skip to main content Skip to search Skip to main navigation
  • Live seminars & online courses
  • Self-paced learning
  • Free training
  • 4 locations
Follow us:
+49 89 62 82 4893
Data & Growth

Customer retention

CRM Customer retention KPIs

Customer retention means a customer buys again. It is cheaper than acquisition, because the most expensive step, the first attention, is already paid for.

Why retention is cheaper than acquisition

Customer retention means a customer buys again. The commercial reason is simple: the most expensive step in selling is the first attention. It has to be paid for through advertising, search or a recommendation. Someone who is already a customer knows the shop, knows the delivery time and knows what they get. That certainty is the real value of an existing relationship.

Recommendation comes on top. Satisfied regular customers talk about the shop, and that is the only advertising that costs nothing. Retention is therefore not only a cost lever but a growth lever.

Which levers work inside a shop

  • Findability in daily use: a regular customer finds the item again after a relaunch if search carries and orders stay traceable.
  • Reordering: with consumables, the pointer to the matching refill works better than any campaign.
  • Service when something fails: how a shop reacts to a problem decides retention more than a successful first purchase. A solved problem binds more firmly than a trouble free purchase.
  • Recognition: a customer with an account does not have to re-enter addresses. That is not convenience but the most common reason for abandoning a checkout.
  • Honest messaging: anyone showing a discount after every visit trains customers to wait for the next one.

How retention is measured

Four values are telling. The share of orders from regular customers shows the dependence on new business. The repeat purchase rate states which share of customers buys again within a period. The time between two orders shows whether the rhythm stays stable. And the churn rate states which share of customers has not ordered within a year.

What matters is splitting these values by cohort, meaning by the month of the first order. An average across all customers hides the fact that older cohorts are more stable than new ones and leads to an assessment that fits no customer at all.

Which measures only cost money

Three mistakes repeat and are expensive. The first is the discount as a retention tool. It lowers the margin immediately and disappears with the next competitor offering more. The second is the loyalty card without benefit for the customer: points that nobody redeems create effort without effect. The third is contact without an occasion. Anyone sending four newsletters a month with nothing to say accelerates the unsubscribe.

A fourth point concerns measurement. Anyone measuring retention by the number of newsletter sign ups confuses attention with willingness to buy. It is measured in orders, not in contacts.

Frequent questions

  • Is retention the job of one department? No. Retention happens in daily work wherever a customer touches the shop.
  • Does a loyalty programme help? Only when the reward is clear and reachable. Otherwise it becomes a formality.
  • When does a customer count as retained? Two to three purchases within twelve months is common.
E-Commerce Masterclass

Think higher. Go further.

The masterclasses bring the subject areas together — compact, intensive days with a clear outcome. For everyone who makes decisions.

Explore masterclasses