E-commerce guide: French summer sales 2026 — Use product data to steer acquisition and accelerate growth

Discount depth is no longer a competitive advantage: it is a shared prerequisite. In the Steerfox panel, 92% of revenue during the French summer sales of 2025 came from discounts below 20%. What makes the difference now is precise catalogue activation: feed quality, markdown segmentation and real-time margin management.

This white paper details the operational levers for a profitable sales period:

• The 30% threshold: where each additional discount point costs margin and ROAS, and net contribution turns negative.
• Segmentation into 4 clusters to allocate media budget based on actual margin, rather than advertising performance alone.
• Product feeds and AI visuals: semantic enrichment and AI assets as the foundation of algorithmic performance, to be finalised before D-3.
• The 3 website areas to secure before 24 June: homepage, product page and checkout.
• A 6-week sequence: early algorithmic investment, disciplined execution and a gradual exit — with adjustment limits that must never be crossed.

A ready-to-use operational calendar to structure your sequence, from preparation through to the autumn return.