Customer service: why it's your best investment in 2026

Solène Augait
Customer Service
- 8 min reading
Published on
January 28, 2026

89% of consumers switch to a competitor after a bad customer service experience. And 93% are willing to buy again from a company that offers excellent service.

These figures tell a simple story: customer service is not a cost center to be optimized, it is a growth driver to be activated.

However, many companies continue to view support as a necessary evil. The result: understaffed teams, outdated tools, and customers who are leaving.

In this article, we explain why customer service deserves to be at the heart of your strategy, and how to turn it into a competitive advantage.

What exactly is customer service?

Customer service encompasses all interactions between your company and your customers, before, during, and after the purchase. Its goal: to help customers get the most value out of your product or service.

Specifically, this includes:

  • Answering questions about your products
  • Supporting customers in their use
  • Resolving problems and complaints
  • Manage returns and refunds
  • Collect and share feedback

But modern customer service goes further. It is proactive (anticipating problems), omnichannel (being present wherever the customer wants to talk to you), and personalized (recognizing each customer and their context).

Customer service, support, customer success: what are the differences?

These terms are sometimes used interchangeably. Let's clarify.

Customer support is the reactive part of customer service: responding to requests, solving problems. It's the firefighter who puts out fires.

Customer service is broader: it includes support, but also proactive assistance, advice, and long-term relationships.

The Customer Success focuses on the customer's success with your product. It is proactive in nature: ensuring that the customer achieves their goals, not just that they don't have any problems.

In practice, these roles overlap and work together. The important thing is that the customer receives good support, regardless of who is providing it.

Why customer service is strategic

Retention costs less than acquisition

Acquiring a new customer costs 5 to 25 times more than retaining an existing one. Good customer service increases retention, and therefore profitability.

Reducing churn by a few percentage points can have a massive impact on your long-term revenue.

Satisfied customers spend more

A loyal customer buys more often, tries your new products, and upgrades. The customer lifetime value (CLV) of satisfied customers is significantly higher.

Word of mouth makes (or breaks) your reputation.

A delighted customer tells three people. An unhappy customer tells ten. In the age of social media and online reviews, a bad experience can go viral.

Conversely, excellent customer service generates recommendations, testimonials, and ambassadors.

Customer service is a differentiator

When products are similar and prices are comparable, service quality makes the difference. This is a competitive advantage that is difficult to replicate because it is based on culture and execution.

Customer service is a source of insights

Your support team talks to customers all day long. They know what frustrates them, what they love, what they would like to see. These insights are valuable for product, marketing, and strategy.

Modern customer service channels

Customers want to reach you on their preferred channel. Modern customer service is omnichannel.

Traditional channels

  • Telephone: still the preferred method for emergencies and complex issues
  • Email: convenient for non-urgent requests, with a written record

Digital channels

  • Live chat: instant calls, digital convenience
  • Social media: where customers spend their time
  • Messaging apps: WhatsApp, Messenger, iMessage, etc.
  • Ticket system : to structure and track requests

Self-service

  • Knowledge base : FAQs, guides, documentation
  • Chatbots : automatic responses to frequently asked questions
  • Customer area: customers manage their own accounts (orders, invoices, etc.)

Self-service is not a way to avoid customers. It is a response to a real demand: 70% of customers prefer to find the answer themselves when possible.

Measuring customer service performance

What isn't measured can't be improved. Here are the essential KPIs.

Satisfaction

  • CSAT: immediate satisfaction after interaction
  • NPS : likelihood to recommend your company
  • CES : effort perceived by the customer to obtain a response

Efficiency

Efficiency

  • AHT : average processing time
  • Cost per contact: how much does each interaction cost?
  • Backlog : volume of pending requests

Be careful not to optimize one KPI at the expense of others. Reducing AHT is counterproductive if it degrades FCR.

Current challenges in customer service

Ever-increasing customer expectations

Amazon has accustomed customers to instant gratification and simplicity. Every company is now measured against these standards, even in very different industries.

The explosion of channels

Each new communication channel adds complexity. Teams have to juggle between tools, and customers expect the same quality everywhere.

Recruitment and retention of talent

The job of support agent suffers from a sometimes negative image. Turnover is high and recruitment is difficult. However, it is a job that requires real skills: empathy, problem solving, and communication.

Cost pressure

Customer service is often seen as a cost to be cut. Teams are understaffed, which degrades quality, increases churn, and ends up costing more than the savings achieved.

AI at the service of customer service

Artificial intelligence is transforming customer service. Not by replacing humans, but by augmenting them.

Automation of simple requests

Frequently asked questions and basic requests can be handled automatically: order tracking, product information, FAQs, etc. This frees up agents for cases that really require their expertise.

Support for agents

AI can suggest responses, summarize customer history, search documentation, etc. Agents become more efficient and improve the quality of their work.

Analysis and insights

Sentiment analysis, trend detection, churn prediction... AI extracts value from thousands of daily conversations.

The Klark approach

At Klark, we have built AI that goes beyond the traditional chatbot. Our AI agent understands requests, accesses company systems, and truly solves customer problems. Not just responding: taking action.

Result: simple requests are resolved in seconds, and agents can focus on high-value interactions.

Building excellent customer service

1. Put the customer at the center

It seems obvious, but how many processes are designed to suit the company rather than the customer? Question every friction point, every unnecessary step.

2. Invest in your teams

Training, tools, working conditions, career prospects. Happy employees deliver better service. It's a simple fact.

3. Empower people to take action

An agent who has to request three approvals for a commercial gesture wastes time and frustrates the customer. Give your teams autonomy.

4. Measure what matters

Not 50 KPIs, but the right ones. The ones that truly reflect the customer experience and the health of your service.

5. Automate intelligently

Automate repetitive, low-value-added tasks. Keep humans where they make a difference: empathy, judgment, creativity.

6. Listen and learn

Every interaction is a learning opportunity. Analyze feedback, complaints, and suggestions. And act on them.

Conclusion

Customer service is not a burden to be endured, it is an investment to be capitalized on. Companies that understand this outperform others: better retention, better word of mouth, better differentiation.

The keys to strategic customer service:

  • Consider it a center of value, not cost.
  • Be present on the channels your customers use
  • Measure satisfaction AND effectiveness
  • Invest in your teams
  • Use AI to augment, not replace

Ready to transform your customer service? Discover what Klark can do for you.

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