Automate Your
E-commerce Operations

All-in-one core system for modern online businesses.

Tsuhan Ace is a core business system for EC and direct-sales companies, provided by A.R. System Co., Ltd. It unifies order management, inventory management, and customer management with 999 custom free fields for flexible data handling. Over 36 years of track record since launch in 1990.

36-Year Track Record     · 999 Custom Fields     · IT Subsidy Ready

36

Track record since launch in 1990

999

Industry-leading custom field count

450

Max IT Subsidy AMount

Trusted by 100+ E-Commerce Brands

The Challenges

Still managing operations menually?

The Solution

E-commerce Ace solves it all.

Powerful Features for your business

Real-time Inventory Management

Real-time inventory sync across multiple warehouses and marketplaces. Achieve zero double-booking and eliminate missed sales.

Up to 999
Free Fields

Unmatched customizability for any industry or model. Standard features cover 90%; free fields handle the remaining 10% unique to your operations.

Order Management Automation

Centralize phone, fax, web, and marketplace orders. Covers automated routing, status tracking, and document output.

Customer Management & CRM

Unify purchase history, call center records, and LTV analysis into a single customer profile. Supports customer deduplication.

Data Analysis & Reports

Multi-dimensional aggregation of sales, inventory, and customer data. View LTV, ROAS, and churn KPIs instantly on the dashboard.

Multi-channel Integration

API connections to Rakuten, Yahoo, Amazon, major WMS, accounting, and MA tools — while preserving your existing system assets.

How E-commerce Ace Works

Connect Your Stores

Connect your e-commerce platforms and marketplaces to E-commerce Ace.

Sync All Data

Orders, inventory and customer data are synchronload in real life.

Automate & Grow

Connect your e-commerce platforms and marketplaces to E-commerce Ace

What is Tsuhan Ace?

Tsuhan Ace is a core business system for EC and direct-sales businesses, provided by A.R. System Co., Ltd. since 1990. It centralizes order management, shopping cart, call center, and WMS (warehouse management), enabling precise marketing strategies and operational cost reduction simultaneously. Its defining feature is the “Free Fields” function – up to 999 custom fields per master record (products, customers, media, vouchers) – allowing flexible adaptation to any business requirement without expensive customization. Rich integration experience with Rakuten, Yahoo, Amazon, Shopify, and EC-CUBE supports omnichannel operations across online, offline, and physical retail.

Seamless Integrations

Works with the platforms you already use

How Tsuhan Ace differs from OMS, ERP & EC Carts

Tsuhan Ace is purpose-built for direct-sales back-office operations -not
a horizontal ERP or a simple order-management add-on.

Success Stories From Our Customers

Amazing customer service made possible by online retailers Ace during COVID-19 pandamic .

CrushonCo, Ltd.

We offer hundreds of custom-made options, enabling a proactive e-commerce strategy with a high degree of flexibility.

CrushonCo, Ltd.

Ready to transfer your e-commerce business ?

Join 100+ businesses that trust e-commerce Ace for their growth.

Let's Talk About Your Business

Our experts are here to help you find the best solution for your e-commerce needs.

Scroll to Top