Challenge
Japanese merchants required complex shipping logic beyond Shopify native capabilities - conditional rates based on product type, customer location, order value, and time slots. Standard solutions could not handle multi-variable calculations.
Solution
Built custom shipping engine as Shopify app using Carrier Service API. Implemented rule-based engine allowing merchants to define unlimited conditions (cart value thresholds, product tags, postal codes, day-of-week). Real-time rate calculation at checkout.
Impact
Enabled merchants to match exact Japanese logistics requirements without manual intervention.
Tech Stack
Project Overview
Shopify shipping solution tailored for the Japanese market. Enabled complex shipping logic configuration without code, significantly reducing merchant operational overhead.
Technical Challenge
Shopify’s native shipping features could not address Japan-specific requirements:
- Per-category shipping fee configuration
- Granular regional pricing (postal code level)
- Combined cart value and item count conditions
- Day-of-week and time-slot availability logic
Implementation Approach
Leveraged Carrier Service API for complete control over shipping calculation logic. Built GUI-based rule engine configurable from dashboard.
Business Impact
Automation of complex shipping logic reduced customer support inquiries. Merchants gained focus on core business operations.