E-commerce Trends 2026: AI and 1st-Party Data

In 2026, e-commerce is scaling up. Artificial intelligence, immersive experiences, the rise of social commerce, and the growth of retail/commerce media are redefining acquisition and retention. At the same time, pressure on privacy (consent, 1^st-party data) and sustainability is imposing new ways of measuring, designing, and operating. Here is a concrete, CRO-oriented overview, by Stellar.

What are "e-commerce trends 2026"?

These are the structural developments affecting growth, cost of acquisition, conversion, and retention: AI in interface and ops, immersion (AR/VR), social/live commerce, rise of retail/commerce media, re-focus on first-party data and compliance, demand for web performance, new CSR expectations, and data-driven management.

2026 Panorama (figures, drivers, risks)

The market continues to grow: online commerce already represented several trillions of dollars in 2025, with a retail share that continues to increase by 2027 according to Shopify and other firms. Drivers: accelerated AI adoption by merchants and customers, cross-border expansion, widespread use of mobile and optimized checkout, as well as professionalization of content (UGC, creators, live). Risks: advertising dependence, rising acquisition costs, channel fragmentation, regulatory complexity (EU), and insufficient web performance (direct loss of revenue).

Generative AI & immersive technologies

AI on the back-office side: assistants that build stores, write, design interfaces, and propose CRO optimizations. AI on the customer side: shopping agents, contextual and conversational recommendations, dynamic content at scale.

• Store building & agents: the latest Shopify editions have introduced an AI Store Builder and significant advances in Shopify Magic and Sidekick (image/text generation, decision support, automations) that reduce TTM and increase experimentation velocity.
• AR try-ons/visualization: integrated filters and try-ons improve pre-purchase confidence (reducing returns/indecision), especially for home, beauty, and eyewear.
• Dynamic merchandising: listings that adapt to context (stock, margin, affinity) and segments (new vs. loyal, wholesale vs. retail).

Immediate action: frame AI usage (governance, prompts, validation), monitor SEO impact (duplication, quality), and integrate AI blocks natively into your Shopify stack to generate fast A/B tests (pages, hooks, visuals, bundles).

Social & live commerce

Live commerce is taking hold in Europe with strong momentum among 18-34 year olds. Short formats (discovery, demos, flash sales) and creator-brand collaboration improve the add-to-cart rate. In 2026, treat live as a CRM channel: planning, reminders, unique coupons, post-live retargeting, and repurposing video clips for paid/UGC.

Quick wins: create series (weekly), package live bundles, connect your product feeds, and measure attributed sales (codes, UTMs, post-purchase surveys).

Retail/Commerce media & end of cookie dependence

2026 confirms the shift towards retail/commerce media: media buys supported by reliable 1P data (intentions, audiences, off-site signals) and robust measurement. The challenge: capturing attention in the moment on merchant journeys, while controlling your cost of sale.

• Retail media: place your products on high-intent merchant inventories (sponsored listings, contextual display), test clean rooms for joint audiences.
• Commerce media: reuse your transactional data to activate more precise lookalikes, without being hostage to third-party signals.
• Consequence: budgetary arbitration in favor of channels with measurable ROAS and decreased dependence on third-party cookies (Chrome maintains cookies, but the risk of volatility remains, so don't build your strategy on them).

Privacy, consent & 1st-party data

The game is won with consented collection and controlled activation. In EEA/UK, Consent Mode v2 has been the standard since 2024: to preserve conversion modeling, remarketing, and certain Google features, align your banners and signals (ad_user_data, ad_personalization), then check GA4 and your Ads links.

• Capture 1P data: quizzes, customer accounts, member benefits, gated content, segmented registrations.
• Server-side tagging: reliable measurement, reduced signal loss, better latency control.
• CRM/Klaviyo: behavioral segmentation, nurturing flows, unified profiles and scoring (propensity, churn).

Good practice: document proof of consent and data usage in your register (CMP + GA4 + Ads + CRM), and maintain a simple GDPR playbook (who collects what, where, why).

Sustainability, ethics & EU regulatory framework

Regulatory pressure remains high despite some adjustments (CSRD, CSDDD, DMA, DSA). For e-commerce brands, the 2026 challenge is twofold: measure and publish (depending on scope) and operationalize (traceability, claims, consumer information, packaging).

• CSRD: if you are within scope, first publications in 2026 for fiscal year 2025; anticipate relevant ESRS (emissions, circularity, workforce, value chain).
• CSDDD: human rights/environment due diligence in the value chain; equip supplier traceability.
• France - AGEC law: displays & consumer info (traceability, repairability/recyclability by category), plastic reduction, and eco-design.

CRO key: transparency (materials, repairability, low-carbon logistics) is not just a duty: it's a conversion lever (proofs, badges, guarantees, useful content).

Web performance, SEO & conversions

Google evaluates the experience via Core Web Vitals (including INP): aim for an INP < 200 ms, an LCP < 2.5 s, and a CLS < 0.1. These thresholds directly impact SEO and conversion rates, especially on mobile.

• Checkout: adopt Shopify's one-page checkout, accelerated payment methods, and monitor drop-off analysis.
• Themes & hydrogen: new lightweight themes, responsive images, deferred scripts, RUM monitoring.
• Product SEO: schemas (Product, FAQ), enriched category pages, intent mapping, internal linking.

To go further, consult our guide Shopify & SEO: optimizing referencing — very useful for 2026.

Product & catalog architecture (metaobjects)

Shopify metaobjects allow for industrializing a rich catalog (guides, ingredients, promises, compatibilities, product FAQ...) without breaking performance. It is also the key for personalization (AI) and international commerce.

Discover: All about Shopify metaobjects.

B2B on Shopify: modern professional experiences

B2B adopts DTC standards: business accounts, catalog pricing, professional payment methods and terms, fast reorders, saved carts, entity control. AI accelerates configuration (lists, quick order), forecasting, and support.

International: languages, currencies, taxes

Centralize market management (content, currency, taxation, payments) and genuinely localize your offer (prices & fees), your content (local semantics), and your technical signals (structured data, hreflang, schemas). Start here: Shopify Markets.

Analytics & data governance

Useful data is actionable: quality improvement (deduplication, consent, identities), governance (data catalog, tracking SLA), and reporting (simple decision-oriented dashboards, not a museum of metrics). Connect GA4, Ads, Klaviyo (events, profiles, revenue), and your server-side sources in a warehouse.

90-day action plan

• W0-W2: audit speed (CWV), consent (CMP/CMv2), tagging (schemas), data mapping (GA4/Klaviyo). Define 3 north-star metrics (CVR, CAC/LTV, INP).
• W3-W6: switch to one-page checkout, lighten theme (images, scripts), launch 2 CRM flows (abandoned cart, win-back), initial AI tests (descriptions, dynamic bundles).
• W7-W10: activate 1 retail/commerce media channel, 1 live series + tracking, create 3 transverse metaobjects (promises, material, guide), and deploy priority markets (Shopify Markets).
• W11-W13: CRO review (scrolls/heatmaps), A/B testing on 3 levers (title, visual, proof), industrialize 1P data collection (quiz, member account), server-side tagging.

Weekly KPIs to monitor

• Acquisition: CPC/CPA per channel, % consented sessions, live/social reach.
• Conversion: INP/LCP/CLS, add-to-cart rate, checkout completion, revenue per session.
• Value: AOV, re-purchase at D+30/D+60, LTV per segment, retail/commerce media share.
• Data/Compliance: opt-in rate, event match quality, schema coverage.

Recent resources

Ready to accelerate? Let's talk

Do you want to prioritize the right projects for 2026 (AI, performance, 1P data, international) and transform them into measurable revenue? Let's talk. Contact Stellar for an express diagnosis (30 min) and a pragmatic roadmap aligned with your goals.