With "My Models" you can add details about your Apple products, including their serial number, purchase date, and warranty coverage end date.
Choose the My Models category from the main window.
Click the Add (+) button at the bottom of the main window.
In the next window, you can enter the details about your Apple product.
Including a date in Warranty Ends allows you to see all your products that are in warranty, about to leave warranty in the next 30 days, and those that are outside their warranty.
You can import a system report to create a new My Model entry. The system report needs to be created by Apple System Information version 10.5.7 or later.