Smart Cart is configured in two places: reward tiers and upsell rules live in the app inside your Shopify admin (the backend); the drawer itself, its wording, announcement bar, upsell picks and countdown are settings on the theme app embed (the frontend). Every scenario below is split that way, with the exact labels.
How to read it. Each scenario has two columns. Backend is the app inside your Shopify admin; frontend is the theme editor and what the shopper sees on the storefront. Labels in bold are the exact ones on screen. An empty frontend column means the storefront needs nothing beyond the app embed, which you switch on once, below.



