Accessibility Menu
Skip to content
Für Patienten
Für Fachkreise
From Satisfaction to Insight

What a Good Customer Survey Needs to Deliver

Interview with Felix Bernet

Customer satisfaction can be measured quickly these days. But a good customer survey goes further: It reaches the right customers, adequately represents relevant customer groups, and shows not only how satisfied customers are, but also why. Felix Bernet explains the role that customer data, the intervista Online Panel, NPS, driver analyses, and loyalty measurement play in this process.

Felix Bernet Interview

Felix, how difficult is it to measure customer satisfaction properly?

The individual satisfaction question itself isn’t difficult. What’s challenging is the study design behind it. Who are our customers? Which customer groups are relevant to the study? How can we reach them? And what information do we need to collect in the survey so that the study results can truly help the company move forward?

What needs to be clarified first?

The target group and how we can reach it in its entirety. B2C companies with a loyalty program, for example, usually have a large amount of contact information and customer data—but by no means all of their customers have a customer card or participate in the loyalty program. If we survey only loyalty program participants, we capture just one segment of the customer base—presumably the particularly loyal customers—and miss relevant individuals who may be less satisfied. That’s why it’s important to carefully consider which approach provides the best coverage of the customer base and what limitations need to be taken into account for individual channels.

 

And what is different in B2B?

In B2B, defining the target group is often even more challenging. A company may have a small number of highly significant customers as well as many smaller ones. In these cases, the study needs to be designed so that strategically important customer groups are sufficiently represented in the survey.

There is also the question of whom we want to survey within a company. When dealing with corporate target groups, we always need to keep one thing in mind: We can never survey a company as a whole, only the people who work there—people who use products in their day-to-day work, make decisions, or select suppliers. Different respondents may assess the same customer relationship differently. We therefore need to consider which perspective or perspectives are important for the questions we want to answer.

When can you work directly with customer contact information?

If a customer database is available, that’s a good starting point. But first we check: Is the data current and complete, or are some customer groups less well represented in the database than others? Do we have email addresses for everyone? And are we permitted to use them for a survey?

For me, the quality of the customer contact database is therefore just as much a part of the study design as the questionnaire itself.

Quote Felix Bernet

And what if there is no complete customer contact database?

Then the intervista Online Panel is a very important way to reach customers. For example, we can specifically identify people who are customers of a particular company, use certain products, or are responsible for purchasing them.

What else can a panel survey offer?

It provides a broader perspective. In the intervista Online Panel, we can survey not only existing customers, but also former and potential customers. And we can compare the satisfaction of a company’s own customers with that of its competitors’ customers. This is often much more insightful than a purely internal customer survey.

Are there other ways to reach customers?

Yes. Depending on the situation, customers can be invited to participate in a survey through a website, customer portal, or newsletter, for example. A QR code placed directly at the point of interest can also be useful—for instance, on a train, in a restaurant, in a store, or at an event. The survey invitation containing the QR code can be displayed on an informational sign, poster, or screen, or provided on a flyer handed directly to customers. This is an easy, low-barrier way to participate and makes it possible to capture immediate customer experiences. However, when interpreting the results, it’s important to keep in mind that participation is self-selected: The people who participate are those who see the QR code and decide to scan it.

Customer satisfaction is often measured using the Net Promoter Score. How useful do you think the Net Promoter Score is?

It’s quick to measure, easy to compare, straightforward to communicate, and very well known. That makes it a highly attractive KPI.

At the same time, its simplicity is also a weakness: By combining promoters and detractors into the NPS, information from the original scale is lost, making the metric particularly susceptible to fluctuations in smaller samples.

And, of course, a single question cannot capture the complexity of a customer relationship. I think the NPS is useful, but I would never look at it in isolation.

What do you consider essential to include alongside the NPS?

At a minimum, an open-ended follow-up question asking for the reason behind the rating. Even this simple addition to the numerical score provides valuable insights into what particularly distinguishes a provider and where critical issues exist.

Quote Felix Bernet

And what if you want to understand the customer relationship in greater depth?

Then you need a more comprehensive customer satisfaction survey that also measures satisfaction with individual aspects of the offering—such as the product, consulting, service, accessibility, value for money, or digital processes.

Which topics are relevant depends heavily on the business. The factors that influence customer satisfaction at an insurance company may differ in part from those at a retailer or a B2B service provider. A good customer satisfaction questionnaire takes both the industry and the company’s specific research objectives into account.

To some extent, the principle is: More scope creates greater depth. A very short questionnaire is well suited to KPI tracking. But if you want to understand the causes of satisfaction or dissatisfaction, you need additional questions about individual aspects of the offering.

But that also raises the question of how important these individual aspects actually are. How can you determine that?

You can ask customers directly about importance, but that isn’t always the best approach. If you ask customers whether quality, service, reliability, or a low price are important, they will often say that almost everything is important.

That’s why we use methods that provide greater differentiation. With MaxDiff, for example, respondents have to choose between different aspects. This makes their priorities clearly visible.

Measuring Customer Satisfaction: An Interview with Felix Bernet

And how can you determine which aspects actually influence overall satisfaction?

For this, we use analytical methods such as driver analyses. They show which aspects of the offering are most strongly associated with target metrics such as overall satisfaction, loyalty, or willingness to recommend.

This helps put the results into context and derive effective actions: An area may receive poor ratings but be relatively unimportant to the overall customer relationship. Conversely, even a relatively minor weakness in a key driver can be critical. Presenting the results in an action portfolio makes it clear where improvement measures will be particularly effective and should therefore be prioritized.

So a customer survey goes well beyond simply measuring satisfaction scores?

Yes. We don’t just want to generate scores; we want to produce actionable insights. The more we know about the different aspects and how they relate to one another, the better we can explain why customers view a company positively or negatively—and how customer satisfaction can be increased.

Ultimately, that’s the difference between a simple KPI and an in-depth customer satisfaction study: A KPI shows where you stand. A more comprehensive analysis also identifies why you are where you are and where action can be taken.

Quote Felix Bernet

How important is loyalty in addition to satisfaction?

Very important. Satisfied customers aren’t automatically loyal customers. A customer can be satisfied with a product or service and still choose a different provider the next time.

Depending on the business, we are therefore also interested in repurchase intent, intention to switch, future usage, or risk of customer churn—and the factors that influence them.

Ultimately, what distinguishes a truly good customer survey?

The study design needs to fit the company’s individual situation and provide relevant insights into the questions it wants to answer. There is no one-size-fits-all approach: Sometimes we have access to current customer contact information; sometimes we can reach the relevant target groups more effectively through the intervista Online Panel; and sometimes we combine different approaches. There is also a wide range of options in terms of content and methodology: Depending on the research question, compact NPS and satisfaction tracking may be sufficient, or a more comprehensive analysis of the relationships between aspects of the offering, satisfaction, and loyalty may be required.

The key isn’t to produce as many metrics as possible, but to arrive at clear, reliable insights. We want to understand what makes a customer relationship strong, where it is at risk, and where a company can take concrete action.

More Information About Customer Surveys

Felix Bernet
Felix Bernet

Would You Like to Measure Your Customer Satisfaction?

We can help you reach the right customers, ask the right questions, and use the results to identify concrete areas for action.