You need to go to the Menu > Inventory > Inventory Management Lists.

Once there, click the Low Stock view.

If you can't find this List View, check if you have moved it to the Hidden List Views. If it looks that such List View doesn't exist in your account at all, you can easily create a new one, by following these instructions.

If you would like to receive notifications (emails, SMSs, Viber/Whatsapp messages) when a product goes low in stock, you can do that through our Zapier integration. Read the following articles for more:

http://help.megaventory.com/en/articles/74776-what-can-the-megaventory-zapier-integration-do-for-you-how-to-get-started

http://help.megaventory.com/en/articles/2960536-is-there-a-notification-e-mail-pop-up-etc-for-when-products-fall-below-a-certain-amount-of-stock