Consumer habits seem to have shifted permanently towards the Internet. Admittedly, growth in e-commerce has slowed slightly, after years of strong growth accentuated by the particular context of the health crisis and successive lock-ins. But the advent of new technologies and ever-higher expectations in terms of customer experience promise a bright future for online purchases, driven in particular by the use of smartphones. As a result, the need for a smooth shopping experience is becoming ever more important, and the conversion rate is more than ever at the heart of the challenge.