On July 8th, Yahoo! began accepting applications for opening a “LINE official account” for all Yahoo! Shopping stores. It is supposed to be used to send LINE messages instead of sending e-mail newsletters to customers. It can be opened and used free of charge within 1000 mails per month. Opening an account is not compulsory. Yahoo! Shopping has provided a “store newsletter” that sends notifications to customers by email, but in Yahoo’s precedent case, messages using LINE were opened “about four times” as much as the store newsletter. Yahoo and LINE merged in March, and cooperation in Yahoo! Shopping will begin in earnest. In the future, we will guide inquiries about Yahoo! Shopping products to LINE accounts, add friend registration guidance on the order procedure page, and consider introducing “chat commerce” that can be purchased through chat.