12 Simple Ways to Reduce The Customer
Acquisition Cost in E-Commerce

What is Customer Acquisition Cost?

Customer acquisition cost (CAC) is a company's overall expense for acquiring a new client. This includes money spent on marketing, advertising, salesperson salaries, and other related expenses.

Understanding CAC is key. The company may suffer financial difficulties if the expense of obtaining a customer outweighs its profit. Monitoring CAC enables businesses to measure the efficacy of their marketing activities and helps them to make informed decisions that ensure long-term growth.

How To Reduce Customer Acquisition Cost? 12 Easy Ways

1. Instantly Engage Potential Customers From Click 2 WhatsApp Ads

AI agents help your e-commerce business connect with potential customers as soon as they show interest. They guide people through WhatsApp and increase the chances of conversion while keeping your costs low.

• • Instant engagement with leads : The moment someone clicks on a Click 2 WhatsApp ad, the AI agent jumps in. It answers product questions and shares your company details right away. This quick response keeps the lead warm and boosts your chances of converting them.
• • Follow-up with dropped conversations : If someone leaves the conversation midway, the AI agent follows up automatically. It tries to bring them back and continue where things left off. This helps you save leads that might have been lost and improves your conversions without spending more on ads.
• • Gathering Lead information : The AI agent collects useful information from your prospects. This helps you understand your customers better. You can then use this data for personalised marketing and improve engagement in your next campaigns.

2. Make Shopping Easy and Personalised Through WhatsApp Commerce

AI agent-powered WhatsApp commerce makes shopping smooth and personal. It gives customers helpful product suggestions and guides them through checkout. Customers can even complete their checkout directly on WhatsApp using UPI, net banking, or cards.

• • Personalised Product Recommendations : The AI agent looks at real-time customer data and suggests products based on what they like. This makes it easier for them to find what they need.
• • Instant assistance during checkout : As customers move to checkout, the AI agent is there to help. It answers questions and shares offers to help complete the purchase. This smooth experience helps reduce the chances of them leaving without buying.

3. Leverage Trust for Organic Growth With Reviews and Referrals

AI agents help you collect reviews and promote referrals. This helps you build trust and your business grow. It also brings in more word-of-mouth traffic and helps lower your customer acquisition cost.

• • Automated review reminders : The AI agent sends reminders to customers at the right time. It encourages them to leave feedback after making a purchase. This regular follow-up helps you get more reviews and build a stronger brand image.
• • Encouraging referrals :The AI agent shares details about referral rewards with your customers. It motivates them to refer friends and family. This simple step helps you reach more people through word-of-mouth.

4. Recover Lost Sales with Hyper Personalised Follow-ups

AI agents help you bring back customers who leave items in their carts. They send personalised reminders that help recover sales and reduce your customer acquisition cost through smart follow-ups.

• • Hyper personalised follow-up messages : The AI agent sends messages that are tailored for each customer who left items behind. It reminds them about their cart and offers help if needed.
• • Offering incentives to finalise purchases : The AI agent can also share discounts or other offers to motivate customers to finish buying. These timely incentives help turn abandoned carts into successful sales without extra spending.

5. Prioritise Appropriate Audiences

Start by examining your present clientele to find recurring patterns. This knowledge aids in the creation of focused advertising efforts. To identify future clients similar to your best current ones, use tools such as Techmonk's Customer Data Platform.

By targeting people more inclined to interact with your business, this strategy guarantees that your marketing efforts will increase conversion rates and lower expenses. For example, your CAC is ₹1,000 per customer if you invest ₹50,000 in a broad campaign and gain 50 clients.

You could cut your CAC to ₹500 by focusing on a more specialised audience and gaining 100 clients for the same investment.

6. Retarget Customers To Your Website

Do you know that retargeting is actually an important strategy to bring back potential customers who have previously visited your website without purchasing.

Most people do not purchase on their first visit. But they have already shown interest. Retargeting helps bring them back with personalised ads.

Here is an example: If you spend ₹10,000 on ads and get 100 visitors but only 5 buy, your CAC is ₹2,000 per customer. Retarget those 95 visitors; even a few extra conversions can cut costs.

Use Facebook, Google, or Instagram retargeting to show relevant offers, abandoned cart reminders, or product recommendations to your audience.

Retargeting keeps your brand at the top of your mind—and lowers your CAC!

7. AI Sales Agents For Lead Conversion

Many e-commerce businesses hesitate to adopt AI, assuming it’s a hefty investment. But what if AI sales agents could lower your Customer Acquisition Cost (CAC) while maximizing conversions?

AI sales agents streamline lead generation by engaging potential customers across your website and WhatsApp. They answer queries instantly, follow up automatically, and drive actions like scheduling a store visit or concludung an order.

By handling routine sales tasks, AI ensures that your human agents only step in when leads need a further push to convert. This saves both time and resources.

Beyond lead generation, these AI agents guide customers through their buying journey, help them discover the right products, and nudge them toward purchase with well-timed recommendations.

The result? Higher conversions, lower acquisition costs, and a more efficient sales funnel, all without expanding your sales team. AI doesn’t just save you money; it helps you scale effortlessly.

8. A/B Test and Optimise Your Pages

A/B testing helps you compare two web page versions to see which converts better. Test headlines, CTAs, images, and layouts. Small changes can make a significant impact!

Optimise your pages for faster load times and a smoother user experience. A slow or confusing page quickly loses customers.

Example: If you spend ₹50,000 on ads but optimise your landing page to double conversions, your CAC drops instantly.

Better pages = more conversions = lower costs.

9. Improve the Sales Funnel

Optimising your sales funnel for better conversions is another way to reduce customer acquisition costs. Tools like Techmonk’s Customer Engagement help you reduce your CAC in the following steps:

• First, it attracts the right audience with targeted ads and SEO. More relevant traffic means lower costs.
• Next, it interacts with leads using engaging content, chat support, and emails. It helps you keep them interested.
• Then, it converts them through a smooth buying experience. A clutter-free checkout page can increase sales.
• Finally, it retains customers with loyalty rewards. Repeat buyers lower CAC over time.

Example: If you spend ₹50,000 on ads but improve conversions by 2x, your CAC drops instantly. Refine your funnel, spend more innovatively, and watch costs go down!

10. Improve Customer Support And Shopping Assistance

Reducing customer acquisition cost (CAC) is not just about better marketing—it is about better customer experiences.

TechMonk’s AI Support Agent ensures customers get quick, accurate answers 24/7. It handles product queries, return policies, and delivery tracking without human intervention. Faster responses lead to higher satisfaction. This means fewer lost customers and more repeat buyers—directly lowering CAC. Plus, AI-driven automation reduces support costs by 35%, saving you money.

On the sales side, TechMonk’s AI Sales Agent helps customers discover the right products through personalised recommendations and real-time assistance. It proactively nudges hesitant shoppers and guides them through checkout. It even offers limited-time deals. This reduces cart abandonment and increases conversions, cutting acquisition costs while driving more revenue.

11. Optimise Your Checkout Process

A complicated checkout process drives customers away, increasing customer acquisition cost (CAC).

Simplify it to reduce drop-offs and boost conversions. Offer multiple payment options, autofill details, and remove unnecessary steps. Faster checkouts mean fewer abandoned carts.

Example: If you spend ₹50,000 on ads and 30% of users drop off at checkout, you are wasting money. Fixing the process can double conversions and lower CAC instantly.

Add one-click payments, trust badges, and clear return policies to build confidence. A smooth checkout keeps customers happy and reduces the cost of acquiring new ones.

12. Optimise Your Customer Acquisition Cost Strategy

Another way would be to focus on optimising your strategy for better results.

• Start by refining your targeting. Run ads for the right audience to avoid wasted spend.
• Next, improve your conversion rates. A faster website and clear CTAs make a big difference.
• Use retargeting to bring back potential buyers. It is cheaper than finding new ones.
• Leverage AI-driven support and sales to convert leads efficiently.

Example: If you spend ₹1,00,000 on ads but increase conversions by 2x, your CAC drops significantly.

How To Calculate Customer Acquisition Cost?

It is important for you to know your customer acquisition cost as it is the key to reducing it. CAC tells you how much you spend to get a new customer.

Example: If you spend ₹1,00,000 on marketing in a month and get 200 new customers, your CAC is ₹500 per customer.

Achieve A 40% Reduction In Customer Acquisition Cost With TechMonk

TechMonk helps its customers build and run high-scale consumer businesses by powering autonomous agents that optimise every consumer interaction, creating personalised customer journeys and experiences. The TechMonk platform is built on agentic workflows that use advanced AI Agents and a comprehensive full-stack marketing toolkit to reduce customer acquisition costs, improve customer lifetime value, increase repeat purchases, and build customer intelligence.

Here is how TechMonk will help you reduce customer acquisition costs.

• Setting Trigger Event & Goal Event : TechMonk’s AI agents talk to potential customers instantly on WhatsApp. They answer questions about your products and company. They also follow up if someone drops off and collect important lead details.
  
  This keeps the conversation going and increases the chance of a conversion, which helps bring down CAC.
• WhatsApp Commerce : The AI agent uses live customer intelligence to suggest products that match their preferences. It also helps them move through checkout smoothly right inside WhatsApp. With helpful suggestions and offers, it makes shopping easier and boosts conversions, which helps lower CAC.
• Reviews & Referrals :The AI agent reminds your customers to leave reviews after a purchase. It also tells them about referral rewards and encourages them to share with friends and family. This helps spread the word and brings in more traffic naturally, which cuts down CAC over time.
• Checkout Abandonment Campaigns :The AI agent sends follow-up messages that feel personal to customers who leave without buying. It offers help and sometimes a small incentive to finish the purchase. This focused effort helps bring back lost sales and improves conversion rates, which helps reduce CAC.

That is not all. TechMonk gives you the best AI agents for e-commerce. Along with that, it also lets e-commerce businesses build their own custom AI agents using a simple builder. These agents can work together in agentic workflows to handle operations smoothly.

• • AI Sales Agent : You can automate your sales journey with personalised product recommendations, helpful shopping support, and smart upselling and cross-selling. This eventually results in higher conversion rates and higher average order values.
• • AI Support Agent : Make your support easier by handling common questions like order status, returns, and FAQs right away. This means faster replies and a better customer experience, without putting extra pressure on your support team.
• • Agent Builder : TechMonk’s AI Agent Builder helps e-commerce businesses create and launch custom AI agents. These agents can handle tasks like ticket management, order management, lead generation, loyalty program information, etc.

They help automate critical workflows and keep your customers connected and engaged at every step.