Customer complaints

A complaint is explicit evidence that part of a product, service or relationship failed a customer. If ignored, it can damage retention and reputation. Historical TARP research from 1999 estimated that one unhappy customer told 10 people, those 10 told another five and 60 people ultimately heard the story. Other studies over roughly 20 years reported that an unhappy customer told at least nine people, 13% told 20 or more and 67% of buyers relied heavily on conversation with friends, family and colleagues. The exact figures are historical, but the operational lesson remains: dissatisfaction travels beyond the person who reports it.

When to use it

• Answer the key performance question: “To what extent are we satisfying our customers?”
• Assess this KPI within the Customer perspective.
• Plan data collection, formula use, reporting frequency, and data-source requirements for this KPI.
• Compare results against the targets, benchmarks, examples, or trend guidance available for this KPI.

Origins

Complaint measurement developed through service management and the twentieth-century quality movement. Formal quality systems reframed complaints as external evidence of process failure and an input to corrective action, while ISO ten thousand and two later codified complaint-handling principles. Counts require context: making reporting easier may increase complaints even while the service becomes more responsive.

What it is

Perspective: Customer perspective.

Key performance question: To what extent are we satisfying our customers?

The same White House research reported that satisfied customers told five people on average—half the reach of a dissatisfied customer. On that basis, two satisfied customers were needed to offset the word-of-mouth effect of one dissatisfied customer.

A recorded complaint is only a partial view. An estimated 95% of dissatisfied customers did not complain and simply stopped buying. Among people who did complain, between 54 and 70% bought again after resolution, rising to 95% when resolution felt rapid.

Complaint measurement should therefore do more than count dissatisfaction. It must reveal the underlying product or service failure, trigger correction and support recovery. In one company, earnest contact and listening recaptured 35% of defectors.

How to use it

Measurement

Data collection method

Capture complaints through low-friction channels and active research. Satisfaction surveys can reveal unreported dissatisfaction; hotels can use in-room feedback; airlines can use airport video booths. Ensure accessibility, privacy and a clear route for urgent or vulnerable customers.