NPS · Net Promoter Score
What is NPS and what can you do with it in customer contact?
NPS measures whether people recommend you. It's a brand metric, and that makes it unsuitable for steering a customer service team.
In short
NPS, in full Net Promoter Score, is a number between -100 and +100 following from one question: how likely are you to recommend us to a friend or colleague, on a scale of 0 to 10. Answers of 9 and 10 count as promoters, 7 and 8 don't count, and 0 through 6 count as detractors. The score is about the relationship with your brand, not about a specific contact moment.
Calculation
NPS = % promoters (9-10) - % detractors (0-6)
The 7 and 8 group drops out of the calculation entirely. That's the property that makes the score jumpy: if part of your customers shift from 8 to 9, the NPS jumps while barely anything changed in what people think.
Why NPS is jumpier than it looks
A score discarding an entire middle group reacts sharply to small shifts. At a few hundred responses NPS can move ten points without anything changing in your service. Teams steering on that are chasing noise.
On top of that the scale differs culturally. In the Netherlands an 8 is a good grade and in the US it's a complaint. Compare your NPS with an international benchmark and you're mainly comparing grading habits.
Where NPS does add something
As a brand metric over time, measured the same way with the same kind of customers, the movement does say something. It's one of the few numbers where a price increase, a product change and your service all become visible together.
The most usable part is also not the number but the open question beneath it. What detractors write there is more concrete than any score, and it's the only place saying why someone gave a 4.
How often do you ask?
NPS belongs periodically, not after every conversation. Ask it after every contact and you're effectively measuring CSAT on a confusing scale, and customers who contact you often weigh more heavily than customers who are satisfied and need nothing.
Two to four times a year on a sample of your customer base is enough for most companies. More important than frequency is that the setup doesn't change, because any change in wording or timing makes the series incomparable.
NPS or CSAT: which steers your customer service?
| NPS | CSAT | |
|---|---|---|
| Question | Would you recommend us? | How satisfied are you with this help? |
| Concerns | Your brand and the whole relationship | This one contact moment |
| Timing | Periodic, detached from a conversation | Right after closing |
| Traceable to a cause | Barely | Yes, by topic and channel |
| Moves from answering better | Slowly and indirectly | Visible immediately |
Steer customer service on CSAT or CES, because those attach to a conversation you can look up. Keep NPS as a brand metric for the board, measured at fixed moments, and don't expect a faster answer to a shipping question to move it.
Where it goes wrong
Comparing NPS with an international benchmark
The scale is used differently per country. A Dutch 8 and an American 8 don't mean the same thing, so the gap with a foreign average mainly says something about grading habits.
Judging agents on NPS
An agent has no influence on your price, your delivery time or your range, and all three sit in this number. Judging on NPS is judging on something someone doesn't control.
Changing the wording mid-series
Change the question, the scale or the timing and you're effectively starting a new series. Note that in your reporting, otherwise a method change reads as an improvement.
Reporting only the number
Without the response count and the split across promoters and detractors an NPS can't be judged. A score of +20 from 30 answers is an impression, not a measurement.
What to do this week
If you measure NPS, read the open answers from your detractors over the last quarter and group them by topic. Nearly always most of it turns out to be about something outside customer service: delivery time, price, a product category. That breakdown is more usable than the score, and it belongs with the people who can act on it.
What this looks like in a system
In Cuego you can both ask a satisfaction question per conversation and periodically send a brand question to part of your customer base. Answers land on the customer card, so at the next contact you can see this customer was critical. In the analytics the scores sit next to the response count and the distribution, so a figure from thirty responses isn't presented as a measurement.
AnalyticsRelated terms
CSAT
CSAT is the percentage of customers who rate a contact moment as positive. The score is easy to collect and easy to misread.
Read onCustomer Effort Score
Customer Effort Score measures how much effort a customer had to make to get helped. It often predicts behaviour better than a satisfaction score.
Read onCustomer Experience
Customer Experience is the sum of every moment a customer deals with you. Customer service is a small part of that, and often the part repairing the rest.
Read on