About this app
Our app enables you to run pre-sale announcements and limited-time sales effortlessly. When products are outside their sales period, the "Add to Cart" button is automatically hidden, and it reappears during the sales period. You can also display unique messages for products before, during, and after the sale. As the first in Japan to utilize the Cart and Checkout Validation API, our app can prevent purchases of products outside their sales period—a scenario not covered by existing apps.