All membership cards, custody cards, notices, coupons, questionnaires, and other cards and papers that were previously issued can all be stored on a smartphone.From now on, you no longer have to bring your membership card or voucher when visiting the store.You dont have to worry about losing them.Customers can check what they are currently depositing at the store by simply looking at the deposit slip screen.You can also get news and coupons from stores.In addition, if you receive a questionnaire from the store, you can also answer it.