Case Study: A Full Renewal of Tsuhan Sozai, a Furniture and Interior Wholesaler's Ordering Service, So New Business Partners Can Use It Without Confusion

Overview

Cospa Creation Co., Ltd., a wholesaler of furniture and interior goods, runs Tsuhan Sozai, an ordering service for its business partners. Existing partners were used to how it worked, but finding product information meant downloading all the data first and searching through it, payment was by bank transfer only, and the procedures for ordering and invoices were complicated. The more new members the company added, the more time it spent on explanations and support.

The company contacted us through our website and selected us after comparing more than ten companies. We handled the full renewal, from screen design through development and infrastructure, and released it about five months after starting.

Challenges

• Product information could not be searched or downloaded individually, so users had to download all the data before searching
• Payment was by bank transfer only, and a lot of manual processing remained
• The procedures for ordering and issuing invoices were complicated, and explaining them to and supporting new business partners took time

What We Did

• Organized the information with wireframes and designed the screens while reviewing them with stakeholders
• Product search that lets users filter by conditions and download only the products they need
• Introduced credit card payments and simplified the procedures for ordering and issuing invoices
• Migrated existing data, integrated with the core system and external e-commerce services, and switched over existing users' accounts

Results

• Users rated the service as "much easier to use"
• Reduced the explanation and support burden that came with onboarding new business partners
• Automated payment processing by supporting card payments

Hard-to-Use Screens Become a Problem When You Try to Add Business Partners

With an ordering system, day-to-day operations keep running as long as existing partners are used to it. The problem surfaces when you start adding new partners: explaining how to use the system and handling initial setup grow in proportion to the number of members. How easy the screens are to use is a management issue that determines whether you can grow your base of new business partners.

Because the existing business flow was clear, we chose to finalize the requirements before moving on to design and development. When integration requirements with the core system and other systems came to light along the way, we decided how to handle each one as it arose, and when we were waiting on requests to outside parties, we reshuffled priorities so progress never stopped. For existing users whose login method was changing, we sent advance notice and prepared reissued accounts before switching over.

Our Scope of Work

• Requirements definition and information design
• UI/UX design
• Design, development, and testing
• Infrastructure setup and data migration
• Integration with external services

Client Information

Company Name

Cospa Creation Co., Ltd.

Business Overview

• Wholesale of furniture and interior goods
• Operation of Tsuhan Sozai, an ordering service for business partners

Frequently Asked Questions

Can it connect to the core system we use now? Yes. In this project, too, we included data integration with the existing core system and other systems in the requirements and implemented it.

Will a renewal put a burden on our existing business partners? For existing users whose login method was changing, we notified them in advance and prepared reissued accounts before switching over.

Can it also integrate with e-commerce services such as Rakuten and Shopify? Yes. In this project, we implemented integrations with Rakuten, Shopify, and others. We design after checking each service's specifications and usage limits.

Related Information

• Renewing ordering and e-commerce systems → System development
• Digitizing ordering operations where manual work remains → DX promotion support

Related news

• We joined a project to improve the user experience and sales of an ordering service as a co-creation partner
• Tsuhan Sozai released, making ordering operations more efficient and improving UX

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