LINE Official Account Extension Tool "Poster" Launches AI-Powered Automatic Generation for Messages and Rich Menu Images

Mosco Solutions, Inc. (Headquarters: Minato-ku, Tokyo; CEO: Kiyoshi Ishihara) announces that its LINE Official Account extension tool, "Poster," will begin offering an "AI Assistant Function" starting May 18, 2026, which utilizes generative AI to support operational tasks. This new feature will help reduce the effort required for creating message texts and rich menu images, supporting more efficient account management. ■ Overview of the New "AI Assistant" Function This update will primarily implement the following two functions: 1. Message Creation Assistant (Flex Message compatible): By inputting ideas for the message you want to send, the AI will propose suitable text drafts and structures. This saves time on writing and supports smooth scheduling of deliveries. 2. Rich Menu Creation Assistant: By simply providing instructions on the menu structure and image, the AI will automatically generate a rich menu image. This enables the creation of highly visible menus regardless of design skills. ■ Service Overview Poster is a tool that extends the functionality of LINE Official Accounts to maximize a company's marketing effectiveness. For usage examples after implementation and user reviews, please also check the product review site below. Official Website: https://poster.ooo/ ITreview (Product Reviews & Comparisons): https://www.itreview.jp/products/poster/ New Feature Release Date: May 18, 2026. For inquiries regarding this matter: Mosco Solutions, Inc. Inquiry Form: https://poster.ooo/inquire/