Building an e-commerce platform is more than "making a website" — it's designing a sales system that has to run 24/7, hold traffic, integrate with the ERP and grow with the business. This article walks through 8 areas that concretely determine whether a store will succeed or not.
1. Understanding goals and target audience
Every technical decision follows a business one. Questions you have to answer:
- Who are your customers? B2C, B2B, mix?
- How many SKUs do you sell — 50, 5,000 or 50,000?
- Are you selling in one country or several?
- Do you have physical locations for click-and-collect?
- What are realistic success metrics — number of orders, average basket, retention?
Without these answers, picking a platform and architecture is guesswork.
2. Choosing the right technology platform
The market splits cleanly:
- Shopify — fastest time-to-market, lowest custom potential, highest monthly fees at enterprise scale
- WooCommerce — flexible, cheap to start, but technical debt grows with scale
- Shopware 6 — sweet spot for medium and large B2B/B2C projects
- Sylius — when business logic doesn't fit any existing platform
- Custom (Next.js + headless CMS) — maximum flexibility, highest upfront cost
There is no "best" platform — there's the best for your specific context.
3. Design and user experience (UX)
UX is the main lever of conversion. The statistic that holds: the difference between an average and an excellently designed checkout can be a 2× conversion rate.
What actually moves the needle:
- One-page checkout with the minimum number of fields
- Guest checkout option (not everyone wants to create an account)
- Visible total (no "surprise" fees at the end)
- Mobile-first design — over 65% of traffic is mobile today
- Fast search with autocomplete for stores with 500+ products
4. Security and data protection
An e-commerce platform holds other people's money and personal data. Which means:
- SSL as standard (Let's Encrypt is free)
- PCI DSS compliance (easiest via a payment provider like Stripe)
- GDPR — consent banner, audit log, right-to-erasure
- WAF (Web Application Firewall) for brute force and bot protection
- Backup strategy with regular restore tests
5. SEO optimization
Steps you don't skip:
- Technical SEO — clean URLs, sitemap.xml, robots.txt, schema markup for products and search
- On-page SEO — title/meta by template + manual override for top products
- Internal linking between products, categories and blog content
- Page speed — Core Web Vitals directly affect ranking
Without technical SEO, the best content marketing only builds on shaky ground.
6. Mobile accessibility
Five years ago mobile was "important" — today it's primary. What actually gets checked:
- Touch targets ≥ 48px
- Forms without horizontal scroll
- Image lazy loading
- Tap-to-call and tap-to-map for physical locations
- Apple Pay / Google Pay integration in checkout
7. Analytics and performance tracking
Without analytics, no optimization. Minimum setup:
- GA4 with enhanced ecommerce events
- Server-side tracking (Conversion API) for ad-blocker resilience
- Hotjar / Microsoft Clarity for session recordings and heatmaps
- CRM integration for the full customer journey
8. Continuous improvement
An e-commerce platform isn't "launch-and-forget". Monthly cadence:
- A/B tests (at least 1 hypothesis per month)
- Performance audit and optimization (LCP, INP, CLS)
- Stock and display audit (out-of-stock removed from categories)
- Plugin / security updates
- Conversion review by channel
Our approach
Our e-commerce practice combines platform selection, custom development, ERP integrations, UX optimization and continuous improvement. We don't do "launch and forget" — we track the numbers and optimize every month.
Get in touch and we'll talk about your project.