Use Line official using text invites sent to contact other people with Line our official that we will have a launch smart shopping. In a message sent to cart invite is sent to the image with a little message so that readers can read and understand much easier than sending a message. And the Line official have sticker line to download for free when the contact is Line our official can receive information about. Smart shopping cart, and will have a scan QR code to do questionnaire. When do two questions to get a discount from the questionnaire. Discounts received can be used in shopping in our supermarket.