Project Overview
One of Japan's established retail chains operating 200+ stores nationwide faced a critical challenge: their 10-year-old e-commerce platform could no longer keep pace with modern consumer expectations.
The Challenge
Legacy system crashed 3-4 times during peak seasons resulting in ¥50M lost sales per incident.
- Page load times averaged 6-8 seconds on mobile
- 45% cart abandonment rate
- 200+ POS systems required zero-downtime migration
- 2M+ loyalty members needed seamless transition
Our Solution
- Architecture & Planning (Months 1-2): Designed headless commerce architecture with Shopify Plus and Next.js frontend.
- Core Platform Build (Months 2-6): Built Next.js storefront with Japanese payment integrations (PayPay, LINE Pay).
- Data Migration & Testing (Months 6-9): Migrated 2M+ customer accounts, 50,000+ SKUs, 15,000+ URL redirects.
- Cutover & Optimization (Months 9-12): Zero-downtime DNS cutover with Datadog monitoring.
System Architecture
Technology Stack
Results & Impact
60%Faster Page Load
+25%Conversion Rate Increase
¥200M+Annual Cost Savings
0Downtime During Peak
"The migration was our biggest technology project in a decade. BCT Global's lab-style team gave us the dedicated attention this project demanded. They understood that for a Japanese retailer, zero downtime during New Year sales isn't a nice-to-have — it's absolutely critical."
General Manager, EC DivisionNational Japanese Retail Chain — 200+ stores