Set Up The Recently Viewed App
One of the most efficient means to cross-sell is to display the products your visitors have recently viewed. Vitals makes it easy to display the recently viewed products. Once you enable the app, the app will start "collecting" the products your visitors are viewing and showing them on product pages as well as in the cart.
The app is, of course, integrated with other apps in Vitals, like the Product Reviews and the Pre-Orders apps (see the screenshot above).
Additionally, you can decide which products to display the app using the Module Filters section for this app.