Customer effort score (ces)
Customer Effort Score measures how easy or difficult it was for a customer to accomplish something - resolving a support issue, completing a purchase, finding information, or using a feature. The premise is simple: customers who have to work hard to get value become dissatisfied and leave, while customers who get value easily become loyal. Reducing effort drives retention.
Why it matters
Research by CEB (now Gartner) found that customer effort is a stronger predictor of loyalty than customer satisfaction or delight. Customers don't necessarily reward companies for going above and beyond - but they do punish companies that make things difficult.
CES matters because:
Effort predicts loyalty. Low-effort experiences drive retention; high-effort experiences drive churn.
Actionable feedback. CES points to specific interactions that need improvement.
Leading indicator. Effort problems surface before they become churn statistics.
Operational focus. Reducing effort is concrete and achievable, unlike abstract goals like "delight."
Measuring ces
The typical CES question:
"How easy was it to [accomplish X]?"
Rated on a scale, commonly:
Calculate the score as an average or as the percentage giving positive responses.
When to measure ces
CES is measured after specific interactions:
Support interactions. How easy was it to get your issue resolved?
Onboarding. How easy was it to get started with the product?
Purchase completion. How easy was it to complete your purchase?
Feature usage. How easy was it to accomplish [specific task]?
Self-service. How easy was it to find what you were looking for?
CES is interaction-specific, not relationship-wide. It measures particular experiences, not overall brand perception.
Ces vs. other metrics
CES vs. CSAT (Customer Satisfaction Score). CSAT measures satisfaction with an interaction. CES measures effort required. A customer might be satisfied with an outcome but frustrated by effort required to achieve it.
CES vs. NPS (Net Promoter Score). NPS measures likelihood to recommend, reflecting overall relationship. CES measures specific interaction effort. They capture different dimensions.
Using together. Many organizations use all three: NPS for overall relationship health, CSAT for interaction satisfaction, CES for effort and friction.
Interpreting ces
High CES (low effort). The experience was easy. This is the goal.
Low CES (high effort). The experience was difficult. Investigate and improve.
Trends over time. Is effort increasing or decreasing? Trends reveal whether improvements are working.
Segment differences. Do certain customer types or interaction types have higher effort? Focus improvements there.
Sources of customer effort
Common sources of unnecessary effort:
Multiple contacts required. Having to reach out repeatedly to resolve one issue.
Channel switching. Being forced to use a different channel (call after chat, visit after call).
Repeating information. Having to explain the situation multiple times.
Waiting. Long hold times, slow responses, delayed resolution.
Confusing processes. Unclear steps, hidden options, complex workflows.
Policy friction. Rules that make sense internally but create customer difficulty.
Technical problems. Bugs, errors, slow loading that impede task completion.
Reducing customer effort
Remove unnecessary steps. Every step is potential friction. Eliminate what isn't essential.
Enable self-service. Customers who can solve problems themselves experience lower effort (when self-service works well).
First-contact resolution. Resolve issues in a single interaction when possible.
Proactive communication. Anticipate questions and provide answers before customers have to ask.
Consistent channels. Ensure context carries across channels so customers don't repeat themselves.
Clear interfaces. Design that guides users to successful completion.
Empower frontline staff. Give support teams authority to resolve issues without escalation.
Ces implementation
Choose touchpoints. Which interactions will you measure? Support is common; expand to other touchpoints as appropriate.
Define the survey. Question wording, scale, and timing. Keep it brief.
Set up triggers. Surveys sent automatically after specific interactions.
Establish baselines. What's your current CES? This is the starting point for improvement.
Close the loop. Follow up on low scores. Understand what made the experience difficult.
Drive improvements. Use CES data to prioritize friction reduction initiatives.
Ces limitations
Not relationship-wide. CES measures specific interactions, not overall sentiment.
Context-dependent. "Easy" means different things for different tasks. Comparing across different interaction types is tricky.
Survey fatigue. Too many CES surveys become annoying, which is itself high-effort.
Doesn't capture everything. Some important experience dimensions aren't about effort.
Ces and product development
Product managers can use CES thinking throughout product development:
Onboarding CES. How easy is it to get started? Friction here predicts activation failure.
Feature CES. How easy is it to accomplish key tasks? Difficult features get abandoned.
Upgrade CES. How easy is it to move from free to paid? Friction here reduces conversion.
Integration CES. How easy is it to connect with other tools? Difficult integrations limit adoption.
Tools like Klero complement CES by capturing the qualitative "why" behind effort scores. When customers report high effort, their feedback explains what specifically was difficult.

