Customer Effort Score, usually abbreviated to CES, is a customer experience metric that measures how easy or difficult it is for customers to complete a task, solve a problem, get support or achieve a desired outcome.
The core idea is simple:
The harder customers have to work, the more likely they are to become frustrated, disengage or leave.
Customer Effort Score helps organizations identify unnecessary friction and improve the parts of the customer journey that require too much time, thought or persistence.
Unlike broader satisfaction measures, CES focuses on a very practical question:
How much effort did the customer have to make?
That makes it especially useful for support interactions, onboarding, digital journeys, service processes and recurring customer tasks.
What is Customer Effort Score?
Customer Effort Score is a metric used to measure the perceived effort customers experience when interacting with an organization.
It is usually measured immediately after a specific interaction, such as resolving a support request, completing an application, changing a subscription or using a digital service.
A typical CES question might be:
“How easy was it to complete what you wanted to do today?”
or:
“The company made it easy for me to resolve my issue.”
The customer then responds using a numerical or verbal scale.
The purpose is not to measure whether the customer liked the interaction.
The purpose is to understand whether the interaction was easy enough.
That difference is important.
Why Customer Effort Matters
Customers rarely wake up hoping to spend time interacting with a company.
They usually have something they want to accomplish.
They want to:
- solve a problem;
- place or change an order;
- understand a bill;
- update information;
- get support;
- complete a process;
- continue with their day.
Every additional step, repeated explanation, unnecessary login, transfer, delay or unclear instruction increases effort.
Individually, these may seem like small inconveniences.
Together, they create friction.
And friction affects behavior.
A customer who repeatedly has to work hard to get things done may not complain.
They may simply stop trying.
That is why CES should not be seen purely as a survey metric.
It is better understood as a signal of process quality from the customer’s perspective.
How Customer Effort Score Works
A CES measurement normally contains three elements:
1. A specific interaction
Measure effort around something concrete.
For example:
- contacting customer support;
- returning a product;
- creating an account;
- making a payment;
- changing a service;
- completing onboarding.
2. A clear question
Ask the customer about the ease or difficulty of that specific interaction.
3. A response scale
Customers indicate the level of effort they experienced.
Different organizations use different scales, such as:
- 1–5;
- 1–7;
- strongly disagree to strongly agree;
- very difficult to very easy.
There is no single universal CES scale.
That matters because CES values are only meaningful when you understand the wording and scale behind them.
Do not compare two CES numbers unless they were measured in a comparable way.
How to Calculate Customer Effort Score
The calculation depends on how your organization has designed the question.
For a numerical scale, the most common approach is to calculate the average response.
For example, imagine 100 customers rate the ease of an interaction on a scale from 1 to 7.
If the total of all responses is 580:
CES = 580 ÷ 100 = 5.8
A higher score would indicate lower perceived effort if the scale runs from difficult to easy.
But this is where teams often make a mistake.
The score itself is not the most important part.
The important questions are:
Where is effort highest?
Why is it happening?
Which customer groups experience it?
What can we change?
A CES metric without follow-up analysis becomes another dashboard number.
What Is a Good Customer Effort Score?
There is no universally meaningful number that qualifies as a “good” CES.
The answer depends on:
- the scale used;
- the wording of the question;
- the type of interaction;
- the customer segment;
- the channel;
- the industry;
- the complexity of the task.
A score of 5.8 on a seven-point scale might look strong.
But if the same process scored 6.3 six months ago, something may have deteriorated.
Similarly, comparing the CES of a password reset with the CES of a mortgage application is unlikely to tell you much.
The most useful benchmark is usually:
your own performance over time for the same journey or interaction.
That allows CES to become an improvement measure rather than a vanity benchmark.
Customer Effort Score vs NPS
Customer Effort Score and Net Promoter Score answer different questions.
CES asks:
How easy was this interaction?
NPS asks:
How likely are you to recommend this organization?
CES is usually more transactional.
NPS is usually broader and relationship-oriented.
For example, a customer may have a positive overall opinion of a company and still experience a very frustrating support interaction.
NPS may remain relatively high.
CES may reveal the problem immediately.
The reverse is also possible.
A single interaction may be easy, but the customer may still dislike the company overall.
That is why CES and NPS should not necessarily compete.
They can measure different layers of the customer experience.
Customer Effort Score vs Customer Satisfaction
Customer Satisfaction, often measured as CSAT, typically asks whether customers were satisfied with a specific interaction or experience.
CES asks whether the experience was easy.
Those concepts overlap, but they are not identical.
A customer may be satisfied because a support employee was friendly and solved the problem.
But the customer may still have been transferred three times before reaching that person.
CSAT could therefore be high while effort is also high.
CES helps reveal this hidden friction.
The Most Important Principle: Measure Journeys, Not Just Channels
One of the most common mistakes with CES is measuring individual channels rather than the customer journey.
Imagine a customer:
- searches the website;
- cannot find the answer;
- tries the chatbot;
- receives an irrelevant response;
- calls support;
- waits;
- is transferred;
- finally gets the issue resolved.
The final support agent may have done an excellent job.
If CES is measured only for that final interaction, the organization may conclude that the experience was easy.
For the customer, it was not.
The real unit of analysis should therefore often be:
the outcome the customer was trying to achieve.
Not merely the department or channel that handled the final step.
Five Sources of Customer Effort
In practice, customer effort usually comes from a combination of five types of friction.
1. Process effort
The customer has to complete too many steps.
Examples include:
- unnecessary forms;
- repeated approvals;
- duplicated information;
- excessive verification;
- unnecessary waiting.
2. Cognitive effort
The customer has to think too hard.
For example:
- unclear terminology;
- confusing choices;
- inconsistent instructions;
- poorly structured information.
3. Emotional effort
The process creates uncertainty, anxiety or frustration.
Examples include:
- not knowing what will happen next;
- feeling ignored;
- repeatedly explaining a problem;
- having no visible progress.
4. Time effort
The customer has to wait or repeatedly return to the process.
Examples:
- long queues;
- delayed responses;
- unnecessary handoffs;
- slow processing.
5. Repetition effort
The customer has to do something more than once.
For example:
- entering the same information repeatedly;
- explaining the same issue to multiple employees;
- retrying failed processes;
- switching channels.
These categories are useful because they move the conversation beyond:
“Our CES went down.”
toward:
“What kind of effort are we creating?”
That is where improvement starts.
A Practical Example
Imagine an insurance customer who wants to change their address.
The company believes this is a simple journey.
The customer experiences:
- login;
- multi-factor authentication;
- account navigation;
- address form;
- identity confirmation;
- an error;
- customer support;
- repeated verification;
- manual confirmation.
The journey eventually succeeds.
From an operational perspective:
case completed.
From the customer perspective:
far too much effort.
A CES survey may reveal the problem.
But the real value comes from combining the score with journey data.
For example:
- number of steps;
- time to completion;
- repeat contact;
- error rates;
- channel switching;
- abandonment.
That combination makes CES actionable.
How to Use CES Effectively
CES becomes useful when it forms part of an improvement loop.
Step 1: Choose an important customer outcome
Do not begin with:
“Where can we add a CES survey?”
Begin with:
“Which customer outcomes matter enough to understand better?”
Examples:
- onboarding;
- issue resolution;
- cancellation;
- account changes;
- claims;
- payments.
Step 2: Measure effort close to the interaction
Ask while the experience is still fresh.
Step 3: Segment the results
Overall averages hide problems.
Break CES down by relevant factors such as:
- journey;
- product;
- channel;
- customer segment;
- issue type;
- process step.
Step 4: Investigate high-effort experiences
The score tells you where to look, not necessarily what to fix.
Combine CES with:
- customer comments;
- interviews;
- journey analytics;
- operational data;
- complaints;
- support data.
Step 5: Remove friction
Focus on changing the system rather than improving the survey.
Step 6: Measure again
A useful CES program should create a cycle:
measure → understand → improve → measure again
Common Customer Effort Score Mistakes
Measuring everything
Not every interaction deserves a survey.
Excessive measurement creates customer fatigue and produces large amounts of low-value data.
Measure journeys where effort matters.
Optimizing the score instead of the experience
Once CES becomes a target, teams can start trying to improve the number rather than the underlying process.
The goal is not:
higher CES.
The goal is:
lower customer effort.
Treating the average as the truth
Averages can hide serious friction.
A journey with an average CES of 5.8 may contain a segment of customers scoring 2 or 3.
Those customers deserve investigation.
Comparing incompatible CES scores
Different questions, scales and contexts can produce different scores.
Avoid false benchmarking.
Ignoring qualitative feedback
The numerical score tells you that something is wrong.
Customer comments often tell you why.
Measuring only the final touchpoint
The easiest support call in the world does not compensate for a difficult journey that came before it.
When Customer Effort Score Is Most Useful
CES is particularly valuable when customers are trying to complete something.
Examples include:
- customer support;
- onboarding;
- self-service;
- digital journeys;
- account administration;
- service recovery;
- subscription management;
- complaints;
- checkout;
- returns.
It is less suitable as a standalone measure of broader brand attachment or emotional loyalty.
For those questions, other measures may be more appropriate.
Customer Effort Score and Product Management
CES can be particularly useful for product teams because effort is often a symptom of poor product design.
High effort can reveal:
- unnecessary workflow complexity;
- unclear interfaces;
- broken self-service;
- poor system integration;
- policy-driven friction;
- technical limitations;
- organizational handoffs.
That means CES can act as a bridge between:
customer experience
and
product improvement.
A Product Manager should therefore resist the temptation to treat CES purely as a customer-service metric.
It may be telling you something about the product itself.
The Customer Effort Improvement Loop
A useful way to work with CES is:
1. Identify the customer outcome
What is the customer trying to accomplish?
2. Measure perceived effort
How easy or difficult was it?
3. Find the friction
Where did unnecessary effort occur?
4. Understand the cause
Process, technology, policy, organization or communication?
5. Remove or reduce the friction
Change the experience.
6. Verify the result
Did customer effort actually decrease?
This keeps CES connected to improvement rather than reporting.
A Simple CES Decision Test
Before adding Customer Effort Score to a journey, ask four questions:
Is there a clear customer outcome?
If not, the measurement may be too vague.
Can the customer reasonably judge the effort?
If not, another measure may be more useful.
Can we identify the process behind the score?
If not, the result may be difficult to act on.
Are we willing to change the experience?
If not, there is little value in measuring it.
That final question is often overlooked.
Measurement without the ability or willingness to act creates data, not improvement.
Frequently Asked Questions
What does Customer Effort Score measure?
Customer Effort Score measures how easy or difficult customers perceive an interaction, task or journey to be.
Is a high CES good?
That depends on the scale used. If higher numbers represent greater ease, a higher score is better. Always interpret CES in the context of the exact question and response scale.
What is the best CES question?
There is no single best wording for every organization. A strong question should focus on a specific recent interaction and clearly measure perceived ease or effort.
Is CES better than NPS?
Neither is inherently better. CES focuses on ease of interaction, while NPS focuses on broader recommendation intent. They measure different things.
How often should CES be measured?
Measure it around important customer interactions where effort matters and where the organization can act on the results. Avoid surveying customers unnecessarily.
Can CES predict customer loyalty?
Customer effort can influence future customer behavior, but CES should not be treated as a perfect predictor of loyalty. It is best used as a practical measure of friction within specific journeys.
Should CES be used as a target?
It can be monitored as a KPI, but organizations should avoid managing purely to the score. The goal should remain reducing genuine customer effort.
Customer Effort Score in Practice
The real power of Customer Effort Score does not come from the formula.
It comes from changing the way an organization looks at customer experience.
Instead of asking only:
“Did we complete the process?”
CES encourages teams to ask:
“How hard did we make the customer work?”
That question often exposes problems that internal operational metrics miss.
And once those problems become visible, teams can start removing them.
Want to go deeper?
If you want a concise, practical introduction to measuring and reducing customer effort, explore:
Customer Effort Score in 60 Minutes
A practical guide to understanding CES, identifying friction and turning customer feedback into measurable improvements.