Selling a product or service online no longer requires a colossal budget or rare technical skills. A computer, an internet connection, and a clear offer are enough to get started. The challenge lies not in the launch, but in the ability to sustain and grow an online business in the face of ever-renewing competition.
Web accessibility and compliance: the technical foundation that few anticipate
Since June 28, 2025, the European directive on accessibility requires online retail sites to comply with specific standards. Keyboard navigation, color contrast, compatibility with screen readers: these requirements apply to the vast majority of online stores aimed at consumers.
Microservice businesses may benefit from an exemption under certain conditions, but for all other structures, accessibility is no longer optional; it is a legal obligation. Integrating these criteria from the design stage of the site avoids costly redesigns later on.
Before even thinking about marketing or customer acquisition, ensure that your platform meets these standards. A non-compliant site exposes you to penalties, but more importantly, to a loss of visitors who cannot complete their purchase. This is an angle often overlooked when exploring business on the Pour Qui Pourquoi? site or other resources specialized in digital entrepreneurship.
Customer retention and purchase frequency: the real lever for online growth

Fevad data for 2025 reveals a trend that changes the game for online entrepreneurs: the number of transactions is increasing, overall revenue is growing, but the average basket size is decreasing. In practical terms, customers are buying more often but spending less with each order.
Why does this observation change the strategy to adopt? Because a model based solely on acquiring new customers becomes too costly. If each sale brings in less, each customer needs to return multiple times for the business to remain profitable.
Three concrete mechanisms can increase this purchase frequency:
- A simple loyalty program, with a tangible benefit from the second purchase (discount, free shipping, early access to a product)
- Email marketing sequences triggered after each order, offering complementary products without being intrusive
- A personalized post-purchase follow-up (request for feedback, usage advice) that strengthens the relationship with the customer
Working on retention costs less than acquiring a new customer. This is the first reflex to adopt when the average basket size decreases.
Generative AI in the purchasing journey: opportunity and friction zone
Consumers are increasingly using artificial intelligence to search for and compare products before buying. An AI assistant can suggest an item, summarize reviews, or compare prices in seconds.
The problem arises at the payment stage. Buyers express concerns about three specific points:
- The use of their personal data by recommendation systems
- The neutrality of suggestions (does the AI favor certain sellers?)
- The reliability of the assistant during the final transaction
Trust drops at the exact moment the customer pulls out their credit card. For an online business, this means that reassurance is needed at the payment stage, not just beforehand. Clearly displaying the sources of recommendations, offering several recognized payment solutions, and explaining how data is used becomes a real competitive advantage.

Marketing strategy for an online business: choose few channels but stick to them
The classic temptation is to be present everywhere: social media, blog, newsletter, paid advertising, partnerships. In practice, spreading efforts across five channels at once means mastering none.
An entrepreneur starting online should select a maximum of two channels and exploit them deeply. The choice depends on the type of product or service sold and the target market.
Content and natural SEO
Producing articles or pages that answer the questions your potential customers have generates regular traffic without recurring advertising costs. The result takes several months to manifest, but the effect accumulates over time. A well-positioned article on a specific keyword continues to attract visitors for years.
Targeted advertising on social media
When the goal is to quickly test an offer or generate short-term sales, targeted advertising provides measurable returns. You set a daily budget, a target audience, and observe the results within days. The key is to measure the customer acquisition cost and compare it to the margin made on each sale.
Combining both approaches works well: advertising generates initial sales while content builds an organic audience over the long term.
Sales and payment tools: what really matters
The choice of technical platform (online store, marketplace, showcase site with order form) depends on the volume of products and the business model. But one point remains constant regardless of the tool chosen: the smoothness of the payment journey determines the conversion rate.
A payment form that is too long, an unknown payment solution, or the absence of a mobile option is enough to cause cart abandonment. Offering at least credit card and a recognized digital wallet covers the majority of buyer preferences in France.
Also monitor your sales data. The number of abandoned carts, return rate, and traffic sources are three indicators that guide decisions without requiring complex tools. Most online store solutions natively integrate these statistics.
Developing an online business relies less on multiplying actions than on mastering a few fundamentals: a compliant and accessible site, an active retention strategy, a clear management of AI in the customer journey, and rigorous tracking of sales data. The rest is regular execution.



