Dunlop Tire Thailand Implements Bill One, Reducing Invoice Processing by 90% and Creating Time for Sales Staff

Sansan Inc., a provider of DX services that transform the way we work, announces a case study and results from the use of its accounting DX service "Bill One" at Dunlop Tire (Thailand) Co., Ltd. (hereinafter, Dunlop Tire Thailand).

Dunlop Tire Thailand operates a tire sales and related services business in Thailand. Previously, local sales representatives were burdened with invoice processing, receiving approximately 200 invoices each month and manually entering payment information into Excel for management. In April 2026, local staff took the initiative to implement Bill One, promoting the digitalization of invoice operations. This resulted in a 90% reduction in processing time, a decrease in human errors, and the creation of an environment where staff can focus on core business activities.

Background of Bill One Implementation

Dunlop Tire Thailand's mid-term management plan emphasizes "proactive action by local staff" and "optimization of business processes," aiming to build an organization where local sales representatives can concentrate on more essential tasks. Previously, sales representatives received invoices from business partners via mail or chat tools. This involved handling paper documents, circulating them, manually entering payment information into Excel for each invoice, and creating invoices for customers, which was a significant burden. Furthermore, input errors could lead to invoice revisions and follow-ups with business partners, posing a risk of delayed customer service.

To address these challenges, create more time for sales representatives to focus on core tasks such as customer proposals, relationship building, and market analysis, and to establish an accounting DX promotion and operational structure led by local staff, Bill One was implemented.

Post-Implementation Operations and Results

With the implementation of Bill One, Dunlop Tire Thailand has established a system for centrally managing invoices received from business partners online. Bill One also handles the proxy receipt and digitalization of paper invoices, allowing relevant departments to view the same information in real-time.

- Achieved a 90% reduction in invoice processing tasks, enabling sales representatives to focus on core business activities.

Through the digitalization of invoices by Bill One, the company has significantly reduced the need for sales representatives to receive and circulate paper invoices and enter data into Excel, achieving approximately a 90% reduction in workload. Furthermore, by extracting data from Bill One for use in creating customer invoices, manual input effort and human errors have been substantially reduced. This has created an environment where sales representatives can dedicate more time to tasks they should focus on, such as customer service and proposal-based sales.

- Achieved accounting DX led by local staff by leveraging Bill One's dedicated support.

By utilizing the support of Bill One's dedicated support staff, the company smoothly handled inquiries and provided assistance to local business partners in Thailand regarding operations. This led to a system where over 80% of business partners now upload and send invoices to Bill One. Additionally, the use of Bill One's message and memo functions facilitated requests for corrections to business partners and sharing of processing status with internal team members, improving operational efficiency and reducing reliance on individual staff. This has solidified an operational structure led by local staff.

Mr. Takahiro Tanaka, President of Dunlop Tire (Thailand) Co., Ltd.

In line with our mid-term management plan, we have been reviewing our business processes with the aim of creating an environment where sales representatives can focus on higher value-added tasks. When implementing Bill One, we were concerned about whether the new operational procedures would be adopted by the field, as many of our business partners are local tire shops in Thailand. However, Bill One is easy to use, and the support system for business partners was excellent, allowing for smooth adoption both internally and externally. As a result, we have transitioned from an almost entirely paper-based system to a current operation where approximately 80% of our business partners upload invoices online. We believe that the success of this project is due to the fact that our local Thai staff took the lead, with the support of the Bill One team.

We view this initiative as the first step towards creating change driven by our local staff. Starting from this successful experience, we aim to foster a culture where each staff member independently identifies issues, proposes solutions to management, and drives improvements, thereby contributing to the overall growth of the organization.

Company Profile: Dunlop Tire (Thailand) Co., Ltd.

Company Name: Dunlop Tire (Thailand) Co., Ltd.

Representative: Takahiro Tanaka

Established: June 2006

Business Activities: Tire sales and related services

Number of Employees: 61 (as of the end of May 2026)

URL: https://dunloptire.co.th/

Sansan Inc. Overseas Subsidiaries Overview

Overseas General Manager: Kazuki Fukuda

Business Activities: Planning, development, and sales of DX services that transform the way we work

Sansan https://www.sansan.com/en/

Bill One https://global.bill-one.com/en/

<Thailand>

Company Name: Sansan Global (Thailand) Co., Ltd.

Location: 952 Ramaland Building 13Fl, Rama IV Rd, Suriyawongse, Bang Rak, Bangkok 10500 Thailand

<Singapore>

Company Name: Sansan Global Pte. Ltd.

Location: 10 Anson Road #05-01 International Plaza, Singapore 079903

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"Bill One": Creating "Elimination" and Transforming Company-Wide Work Styles

Bill One, provided by Sansan Inc., is an accounting DX service that solves challenges in various business operations, including invoice reception, expense settlement, and accounts receivable management. By leveraging AI and technology to create "elimination" in business processes involving supporting documents such as invoices and receipts, it transforms the way not only accounting departments but the entire company works.

https://bill-one.com/

Company Profile: Sansan Inc.

With the mission of "Creating innovation through encounters," Sansan Inc. provides DX services that transform the way we work. Its main services include the business database "Sansan," the business card app "Eight," the accounting DX service "Bill One," the contract management service "Contract One," and data quality management "Sansan Data Intelligence," offered both domestically and internationally.

Established: June 11, 2007

URL: https://jp.corp-sansan.com/

Location: Shibuya Sakura Stage 28F, 1-1 Sakuragaoka-cho, Shibuya-ku, Tokyo 150-6228

Capital: 7.35 billion yen (as of February 28, 2026)

Business Activities: Planning, development, and sales of DX services that transform the way we work

Sansan https://jp.sansan.com/

Eight https://8card.net/

Bill One https://bill-one.com/

Contract One https://contract-one.com/

Sansan Data Intelligence https://jp.sansan.com/sansan-data-intelligence/