MarketingFramework / modelModelIntermediate

Customer complaints

How can customer complaints improve people, teams, or organisational effectiveness?

IntermediateOperationalIndividual3 min read

Contents

Helps managers answer: To what extent are we satisfying our customers?

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.

Larger organisations need a governed complaint-management function that records, routes, resolves and learns from cases rather than merely acknowledging them.

Formula

No single formula is sufficient. Build a complaints index from a small set of measures that cover volume, severity, speed, cost, empowerment, recurrence and resolution.

Complaint volume: total complaints per period, per million units sold or shipped, or per order.
Resolution time: average time to reach a result the customer accepts.
Response time: average delay before the first meaningful response.
Resolution cost: complaint-handling cost per period as a percentage of sales.
Call length: average total contact time required to resolve an enquiry, complaint or transaction.
Frontline resolution: percentage of complaints or claims satisfactorily closed by the first-contact team.
Complaint mix: frequency and severity of delays, rudeness, breakage, quality failure and other types.
Resolution rate: percentage of recorded complaints closed successfully.

Frequency

Collect operational complaint data continuously and supplement it periodically with surveys that capture people who never report directly.

Source of the data

The primary evidence comes from customers and is commonly held in customer-service or marketing systems. Link it to product, order and process data with appropriate access controls.

Cost/effort in collecting the data

Collection cost depends on the channel. Point-of-experience feedback is inexpensive; large externally run satisfaction studies cost more but reduce internal analytical effort.

A dedicated customer-service operation adds people, systems and equipment costs, which should be compared with recovered revenue, prevented recurrence and learning.

Target setting/benchmarks

Use industry benchmarks from bodies such as the American Productivity and Quality Council (APQC), but normalise for exposure, channel and complaint accessibility before comparing.

Historical general benchmarks, which vary substantially by industry, include:

About 25% of customers are dissatisfied with a purchase.
Of that 25%, only around 5% complain.
The remaining 95% may see no value in complaining or may not know how or where to do so.
Only half of complainants believe the problem was resolved satisfactorily.

Example

A global airline more than doubled retention among customers who contacted customer relations after formalising its complaint process. The department’s return on investment—business saved plus loyalty and referral value divided by cost—rose by 200%.

Training addressed three predictable customer interpretations:

Denying the reported event can feel like calling the customer a liar.
Later confirming the customer’s account can imply that the organisation did not initially believe it.
Introducing new information can sound like an excuse for poor service.

The airline embedded a four-step recovery process in its people and systems:

Apologise and own the problem. Customers want a credible apology and one person to champion resolution, regardless of internal fault.
Respond quickly. Reply the same day where possible and within 72 hours otherwise. The airline found 40–50% defection when response took longer than five days; speed demonstrates care and urgency.
Confirm corrective action. Explain how the operational cause is being fixed so confidence can return.
Use the telephone where appropriate. Customers with serious problems valued a personal call from customer relations.

Top practical tip

Design resolution before inviting more complaints. Give trained employees ownership, authority, escalation routes and response targets so reporting a problem leads visibly to action.

Top pitfall

Do not interpret a low complaint count as high satisfaction. Most dissatisfied customers may never report directly, so combine complaint data with surveys, behaviour and lost-customer research; otherwise the metric shows only the visible tip of dissatisfaction.