Building an enterprise eCommerce platform typically takes 4 to 9 months, but the exact timeline depends on the scope, complexity, and level of customization required.
Typical Timeline Breakdown
- Discovery & Planning (3–6 weeks) This phase covers business requirements, technical architecture, platform selection (Magento, Shopify Plus, BigCommerce, custom), and integration planning.
- UX/UI Design (4–8 weeks) Wireframes, user journeys, and interface design for web and mobile experiences, including approval cycles and revisions.
- Core Development (8–16 weeks) Platform setup, custom feature development, catalog structure, checkout flows, role-based access, and performance optimization.
- Integrations & Customization (6–12 weeks) ERP, CRM, payment gateways, logistics, tax engines, third-party APIs, and custom workflows are implemented here. This phase often runs parallel with development.
- Testing & Quality Assurance (3–6 weeks) Functional testing, performance testing, security checks, UAT, and bug fixes to ensure stability at scale.
- Launch & Post-Launch Support (2–4 weeks) Deployment, monitoring, performance tuning, and team training.
Factors That Affect the Timeline
- Number of integrations (ERP, OMS, PIM, CRM)
- Custom workflows and automation
- Multi-store, multi-currency, or multi-language setup
- Security and compliance requirements
- Data migration volume
- Approval and feedback cycles
Faster vs Longer Builds
- 4–5 months: Platform-based builds with limited customization
- 6–7 months: Moderate customization with multiple integrations
- 8–9+ months: Highly customized, global enterprise platforms
Bottom Line
An enterprise eCommerce platform is not just a website—it’s a business system. Investing enough time upfront in planning and integrations helps avoid rework and ensures long-term scalability and performance.
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