How does cross-selling work in an online store?

Cross-selling, or cross-sale, is a technique that involves suggesting complementary products to customers alongside the products they intend to buy. In e-commerce and B2B, it is one of the most effective ways to increase cart value and improve margins.

In online stores, cross-selling typically takes the form of sections like “customers also bought” or “recommended products.” Thanks to integration with analytics systems, recommendations are personalized and tailored to users' actual preferences. In B2B, cross-selling can encompass entire product groups, e.g., when purchasing machinery, accessories, spare parts, or maintenance services are suggested.

The key to successful cross-selling is understanding customer needs and skillfully using purchase data. Overly aggressive suggestions can be annoying, while well-matched ones increase user satisfaction and build loyalty.

Implementing cross-selling is not just about increasing revenue, but also a way to educate customers about your company's full range of offerings and strengthen business relationships.