LINE Automated Customer Service for Rakuten Shops, "EC Sommelier," Now Available on RMS Service Square from June 29, 2026

EC Data Bank Co., Ltd. (Headquarters: Kashiwa City, Chiba Prefecture, Representative Director: Kazuyuki Shimano) has announced that "EC Sommelier," a chat service that uses AI to automatically propose products 24/7 within LINE Official Accounts for Rakuten merchants, will be available on RMS Service Square starting June 29, 2026 (Mon).

Background of Development

Many Rakuten shops are engaged in marketing using LINE Official Accounts, but they face challenges such as:

Infrequent communication, only during sales, with periods of neglect in between.

Insufficient operational management due to the absence of dedicated staff.

Having followers but failing to convert them into sales.

High unsubscription rates and weakening engagement.

In recent years, major e-commerce platforms like Amazon, Rakuten Ichiba, and Yahoo! Shopping have successively introduced AI-powered product recommendation features, with "AI recommendation → purchase" emerging as a new trend in product acquisition. However, implementing such advanced features at the individual store level has been technically and financially challenging.

EC Sommelier was developed to solve these issues and realize an AI product recommendation experience comparable to major e-commerce platforms for Rakuten stores' LINE accounts.

Three Values Brought by EC Sommelier

【24/7 Fully Automated Operation】

The AI operates automatically 24/7, eliminating the need for human intervention. After initial setup, only an API license key renewal every 90 days is required, allowing for unattended operation. Shops without dedicated staff can use it with peace of mind.

【Introduction with Zero Cost Burden】

Messages sent from EC Sommelier do not consume LINE message counts, allowing for introduction without additional costs under the current LINE plan. The webhook relay function also enables parallel use with other LINE services.

【Improved Usability with Two Recommendation Methods】

Supports two methods: product recommendations by category selection (guiding users to products simply by choosing from a menu) and product recommendations via natural language chat (introducing optimal products when users converse). This allows users to interact according to their preferences, leading to increased engagement.

Usage Conditions

Monthly fee: \u00a520,000 (excluding tax)

No initial cost

30-day free trial available

Costs for Rakuten CSV bulk editing function and application to R-SNS are required in advance.

▼EC Sommelier Official Website

https://ec-sommelier.jp/

▼New Applications

RMS Service Square (Accepting applications from June 29, 2026)

https://service.rms.rakuten.co.jp/product/0189-0002/1

EC Data Bank Co., Ltd. Overview

EC Data Bank Co., Ltd.

Established in March 2019 as a new company to provide e-commerce support and media development support, leveraging the expertise gained in the internet industry while operating multiple e-commerce stores under "Makura Co., Ltd." We not only provide tools and systems but also propose customized services through consulting based on business content, scale, and circumstances.

Company Name: EC Data Bank Co., Ltd. ■Representative: Kazuyuki Shimano ■Capital: 3 million yen ■Established: March 1, 2019 ■Location: 4F Kashiwa Somiya Bldg., 4-8-14 Kashiwa, Kashiwa City, Chiba Prefecture, 277-0005 ■TEL: 04-7167-3015 (Main) FAX: 04-7167-3017 ■URL: https://ecdb.co.jp/ ■Shop Operation Automation System: EC-UP https://ec-up.jp/ ■Email: info@ecdb.jp ■Business Activities 1. Provision of services for automation and efficiency of online shop operations, and provision of systems for creating engagement and human presence. 2. Consulting services for online shops.

【Contact Information for This Matter】 Contact Person: Kazuyuki Shimano TEL: 04-7167-3015 Email: info@ecdb.jp