ShopMart Japan Inc. — Build Story

ℹ︎For confidentiality, company and project names and system images have been replaced with pseudonyms and mock data.

Both store and app, unified on one EC platform.

ShopWave is an EC platform that unifies the mobile commerce app and the store back office, centrally managing products, inventory, orders, coupons, and delivery.

An in-app checkout customer experience and single-screen store operations for inventory, orders, and sales — built in-house from scratch in 10 months.

View the build story Try the demo

In-app completion

Search to purchase

Member programs

Coupons / Favorites

Unified management

Inventory, orders, sales

ShopWave

Cart 3

Popular

¥2,480

New

¥1,980

Sale

¥3,200

Staple

¥980

Go to checkout ¥6,640

CLIENT

About the client

ShopMart Japan, a retail operator.

Sells products through both physical stores and online. They wanted to elevate the mobile shopping experience and streamline in-store inventory, order, and delivery operations.

They needed a platform that could grow repeat visits through member coupons and favorites while capturing sales in real time.

BUSINESS FLOW

STEP 1

Find products

Discover products by category and search

STEP 2

Cart and checkout

Coupon applied, checkout complete

STEP 3

Delivery and pickup

Track status

STEP 4

Managed in-store

Unify inventory, orders, and sales

CHALLENGE

Design challenges to solve

Four design challenges for business growth.

Link app and store inventory to cut lost sales

Fragmented inventory leads to stockouts and double-handling.

Run member programs to grow repeat visits

Coupon, favorite, and other retention measures are lacking.

Visualize delivery to cut support inquiries

Delivery status can't be tracked.

Make sales real-time to speed up decisions

Aggregation is monthly and manual.

ARCHITECTURE

Architecture built together

Four areas built from scratch, in-house.

A NestJS API for the mobile commerce app and an EC-CUBE-based, customized store back office are integrated into one EC platform (built with Amela). Inventory and orders sync in real time.

EXECUTION

10 months

Period

80 man-months

Total effort

Area ①

Products and inventory

Challenge

Inventory split across app and store

Solution

Real-time inventory sync

Area ②

Orders and delivery

Challenge

Delivery status can't be tracked

Solution

End-to-end visibility from order to delivery

Area ③

Members and coupons

Challenge

Retention measures lacking

Solution

Coupons and favorites drive repeat visits

Area ④

Sales and analytics

Challenge

Aggregation is monthly and manual

Solution

Sales visualized on a dashboard

Backend

NestJS

TypeScript

EC-CUBE

Infra

MySQL

Redis

AWS

IMPACT

Value the platform delivers

The app and the store, as one.

Purchase completes in-app

A customer experience that completes search through payment on mobile.

Cut lost inventory sales

Real-time inventory sync across app and store.

Higher member repeat visits

Coupons and favorites drive repeat visits.

Data-driven operations

Capture sales in real time and improve.

Both store and app, unified on one EC platform.

ShopMart Japan, a retail operator.

Four design challenges for business growth.

Four areas built from scratch, in-house.

The app and the store, as one.

Experience EC with a live demo.