AOV Boosters In-Cart
Cart Upsell extension (storefront block)
A theme app block that places upsell content outside the cart drawer.
This article is a draft and may be incomplete or change before publishing.
The Cart Upsell extension (cart-upsell-extension) is a theme app block you can drop on any page outside the cart drawer.
Where to use it
- Landing pages — Show targeted upsells on campaign-specific pages.
- Product detail pages — Render an upsell module below the buy box.
- Custom pages — Embed upsell content anywhere a theme app block is supported.
How to add it
- Open the Shopify Theme Customizer.
- Navigate to the page you want to add the block to.
- Click Add section or Add block.
- Select Cart Upsell from the Apps category.
- Drag it to your desired position and save.
Configuration
The block uses the same upsell offers configured in the Cart Editor — no separate setup. Your offers automatically appear wherever you place the block.