Setup pre-order products with start and end dates

All the steps to configure: 

1. From the admin page of the app, click “ Single product” tab
2. Select any pre-order products that you want to configure
3. Enable pre-order status
4. Click on ” Start date” in the pre-order start condition ( The start date must be larger than present date)
5. Set up overselling setting 
6. Click on “ End date” in Pre-order stop condition ( The end date must be larger than start date )
7. Click ” Save” to update the change
8. Test out the product by clicking on ” view” on the top of the page