What does “Sync with Shopify” do? When should we use it? Why is it located in the not profiled products tab?

What does “Sync with Shopify” do? When should we use it? Why is it located in the not profiled products tab?

The information updated automatically from Shopify within a said time. When you want to update the information instantly without waiting for the API to sync the changes you use that button. It is placed so that you can sync the information of not-profiled products as well.