Adding cart notifications will help you reduce cart abandonment and increase conversion rates by reminding customers to continue shopping and complete the order.
As a customer adds items to the cart, a notification appears in the cart favicon and it will flicker when they move away from the store tab. This increases the likelihood of customers completing their transactions.
How to Enable Cart Notifications
In Shopify admin, under Online Store and click on Themes.
Select your Debutify Shopify theme (4.8 or later version) and click on Customize.
Click on Theme Settings.
Click on Cart to view the settings.
Tick Enable cart notification and make sure the cart type is Modal.