Glossary
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customer-acquisition
Customer acquisition encompasses the actions taken to attract and convert new buyers. Definition, channels, differences with CAC, and levers for a Shopify store.
Updated on
June 4, 2026
Customer acquisition refers to all the actions a business takes to attract new customers and guide them to make a first purchase (or a first significant order). In e-commerce, this covers marketing, advertising, SEO, social media, emailing, affiliate marketing, and website optimization to convert traffic into sales. Acquisition is distinct from retention: the former aims to acquire customers, while the latter aims to retain them and increase their value over time.
Summary
Customer acquisition definition
Acquiring a customer means bringing them into your commercial database as a purchaser or qualified prospect, generally after a process of discovery and trust. On a Shopify store, acquisition is successful when an unknown visitor becomes a paying customer or leaves usable contact information (email, account) as part of a conversion process.
Three concepts not to be confused:
Concretely, this includes in particular Customer Acquisition: the strategy and actions to win new customers (channels, messages, offers, customer journeys); Traffic: the volume of visits to the site. Traffic without conversion is not yet a successful acquisition; CAC (Customer Acquisition Cost): the financial indicator that measures how much it costs, on average, to obtain a new customer (marketing expenses ÷ new customers).
Another distinction: acquisition vs returning customer. Acquisition targets the first purchase; retention aims for subsequent purchases and an increase in CLV (customer lifetime value).
Why customer acquisition is a major challenge
Without acquisition, an online store cannot grow sustainably. Even with an excellent margin and a strong product, a continuous flow of new buyers is necessary to compensate for natural churn and to test segments.
The concrete challenges for a merchant:
Concretely, this notably covers Revenue growth: more unique customers = more orders, subject to profitability; Economic balance: the acquisition cost must remain lower than the value generated by the customer (CAC < CLV / LTV). See our article CAC vs LTV in e-commerce; Diversification of sources: relying on a single channel (Meta Ads, Google, influencer) exposes the brand to CPM increases or algorithm changes; Brand effect: a well-executed acquisition (content, reviews, experience) strengthens awareness and facilitates future organic sales.
Acquisition does not stop at the advertising click: a visitor who arrives via a campaign but abandons their cart is not yet an acquired customer. The conversion rate and the on-site experience are an integral part of acquisition performance.
The main acquisition channels in e-commerce
Shopify stores often combine several levers:
Concretely, this includes in particular e-commerce SEO: organic traffic via Google to product pages, categories, and content. Progressive acquisition, low marginal cost once the content is in place; Paid advertising: Meta Ads, Google Shopping, TikTok Ads. Fast acquisition, variable cost depending on bids and creatives; Social networks: organic content, UGC, collaborations. Generates discovery and traffic to the store; Email and SMS: rather retention-oriented, but pop-ups and lead magnets capture emails to feed acquisition (first order).
We can also integrate Affiliation: partners paid per sale or per click; Retargeting: reconversion of visitors who have already visited (technically more like reactivation, but often classified under paid acquisition); Marketplaces: Amazon, Etsy as acquisition showcases, with commissions and less control of the customer relationship.
Use case: a food supplement brand launches on Shopify. Month 1: traffic via organic TikTok and micro-influencers. Month 2: targeted Meta campaigns + SEO articles on product benefits. Month 3: welcome email with a -10% code to convert newsletter subscribers. Each channel feeds the top of the conversion funnel; only those who place an order count as acquired customers.
Measuring customer acquisition on Shopify
On Shopify, measure acquisition by cross-referencing multiple sources:
Concretely, this notably includes Shopify Analytics: new vs returning customers, sales by sales channel; Google Analytics 4: sessions, conversions, attribution by source / medium; Ad pixels: cost per acquisition (CPA) by campaign; CRM / email: new subscribers converted into buyers.
Useful indicators:
Concretely, this notably covers Number of new customers over a period; Customer acquisition cost (CAC) by channel; overall Conversion rate and by landing page; Average order value of new vs returning customers.
Acquisition is not limited to the ad budget: a slow site, poor product pages, or a lack of customer service can cause the real cost per acquired customer to skyrocket. Answering questions in real-time (FAQ, chat, AI agent) often improves the conversion of traffic that has already been paid for or earned.
Points of vigilance to be aware of
In practice, the most important things to monitor are: Define an acquired customer: first purchase? email + purchase within 30 days? Harmonize the definition between marketing and finance teams; Test one channel at a time: isolate the impact before multiplying expenditures; Align ad promise and landing page: same offer, same product, same message; Optimize conversion before increasing the acquisition budget: otherwise, you pay more for the same result.
Other points also deserve special attention: Combine acquisition and retention: a customer acquired once should be able to purchase again (loyalty program, post-purchase email).
Conversely, some points can weaken the journey if the team does not anticipate them.
In practice, you must especially watch out for: Confusing visitors and acquired customers; Ignoring CAC by channel and only looking at immediate ROAS; Putting everything into paid ads without investing in SEO or content (long-term dependency); Neglecting the mobile experience even though a large share of acquisition traffic comes from it.
The key takeaways of customer acquisition
Key takeaways: Customer acquisition = gaining new customers via marketing, ads, SEO, and website conversion; Distinct from traffic, CAC (cost), and retention (returning customers); Key channels: SEO, ads, social, email, affiliation, retargeting, marketplaces; Profitability: aim for CAC < customer lifetime value (CLV / LTV); On Shopify, measure new customers, conversion, and performance by channel.
Associated terms, FAQ, and resources
Associated terms
CAC: average cost to acquire a customer.
Customer acquisition cost: same concept, French phrasing.
CLV: total value of a customer over time.
Conversion rate: share of traffic that becomes a customer.
FAQ
What is the difference between customer acquisition and marketing?
Marketing is broader (awareness, content, branding). Customer acquisition focuses on the measurable goal of gaining new customers, often with tracking of cost and return.
Acquisition vs. retention: what to prioritize?
Both. Without acquisition, there is no growth; without retention, the CAC remains a recurring cost for every euro of revenue. Mature brands often invest more in retention once the base is established.
How to calculate customer acquisition cost?
Common formula: CAC = marketing and sales expenses (period) u00f7 number of new customers (same period). Details and nuances in the CAC sheet.
What acquisition channels for a small Shopify store?
Often SEO + content, organic social media, email capture, and then small-budget test advertising. The best channel depends on the product, margin, and audience.
Going further
Analytical benchmarks: define internally what a "new customer" is (first purchase, rolling window) and align marketing, finance and tools (Shopify, GA4) on the same CAC calculation rule.
Enzo
June 4, 2026
