Shopify vs Custom E-Commerce: 2026 Growth-Stage Decision Guide

E-commerce brands ask the same question past €500k/month: stay on Shopify, or go custom? In 2026 the answer is strategy-driven, not size-driven.

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1. Short answer

• < €15k/mo, standard catalog → Shopify
• €15k-150k/mo, custom workflow starting → Shopify Plus + custom apps
• €150k+/mo, brand UX = competitive edge, hybrid B2B+D2C → headless custom
• B2B / distributor / dealer portal → custom (Shopify B2B is not enough)

2. Side by side

Criterion

Shopify Plus

Custom Headless

|---|---|---|

Upfront	€10k – €40k	€60k – €200k
Monthly platform	$2k – $4k	€0 or €500-2,500
Transaction fee	0.15-0.5%	0
Customization limit	Mid	Unlimited
LCP	2.0-3.5s	0.8-1.6s
SEO control	Mid	Full
B2B capability	Limited	Unlimited
5-yr TCO (€150k/mo brand)	€400k – €900k	€300k – €650k

3. Shopify strengths

Time-to-market, 8,000+ app ecosystem, PCI compliance, themes, local payment rails.

4. Shopify ceilings

Checkout restricted even on Plus, branded UX standardization, app costs compound, perf ceiling, limited B2B ops, analytics walls.

5. Custom headless strengths

Speed = conversion, deeper SEO (programmatic), unique UX (3D, configurator, AR), omnichannel data, AI-ready first-party data, integration freedom.

6. 2026 headless reference stack

Next.js 15 + TypeScript + Tailwind, Medusa 2 / Saleor / Commerce Layer / commercetools, Algolia/Typesense/Meilisearch, Akeneo/Sanity PIM, Stripe/iyzico/PayTR, Sanity/Contentful/Payload CMS.

7. Migration path

Phase 1: parallel headless storefront. Phase 2: Shopify as backend, new frontend. Phase 3: commerce engine migration. Phase 4: ERP+OMS integration and B2B portal.

8. SEO angle

Shopify structural SEO limits (URL structure, robots constraints, CWV theme/app-bound, no native hreflang). Custom headless = full control, programmatic SEO viable.

9. B2B state

Custom pricelists, multi-level approval, credit limits, dealer hierarchy, RFQ — Shopify B2B struggles; custom is the real answer.

10. Ten decision questions

Revenue now/3y, D2C vs B2B vs hybrid, catalog complexity, brand UX as edge, countries/currencies, ERP/CRM stack, personalization goals, internal dev capacity, 5-year budget, AI/3D/AR roadmap.

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*Makrops ships custom headless e-commerce projects for scaling brands: Next.js + Medusa/Saleor, Shopify migration, B2B portal, omnichannel. Contact us.*