The Cart Add-on element allows you to offer optional extras—such as shipping protection, gift wrapping, or product warranties—directly inside the cart drawer. These add-ons provide customers with easy ways to customize their order while helping you increase average order value (AOV).
Once inserted, the element is pre-configured and ready to use. You only need to connect it to a real product from your Shopify store.
Inserting the Cart Add-on Element
Open the Insert Panel
Navigate to the Insert Panel in Instant.
Locate the Add-on Element
Go to Elements → Cart.
Hover over the Cart category to expand the menu.
Select Cart Add-on.
Drag into Cart Layout
Drag and drop the Cart Add-on element into your Cart Drawer Layout.
It appears pre-configured by default.
Connecting the Add-on to a Product
By default, the Add-on comes connected to a preview product.
To make it functional, you must connect it to a real product from your Shopify store:
Select the Cart Add-on element in the layout.
In the right sidebar, replace the preview product with a product from your store.
Once connected, the Add-on becomes a purchasable option inside your cart.
This step is mandatory. Without connecting a Shopify product, the Add-on cannot be purchased.
Configuration Options
The Cart Add-on includes an interactive toggle, which is linked to a built-in interaction called Add-on Toggle. You can customize how the add-on is displayed:
Show as Line Item
The add-on appears as a separate product line in the cart (recommended for tangible add-ons like gift wrapping or extra accessories).
Hide as Line Item
The add-on is hidden as a separate line item but still included in the order (recommended for non-physical add-ons like shipping protection or insurance).
Changing Display Settings
Select the Cart Add-on element.
Open the Interaction Panel.
Locate the Add-on Toggle interaction.
Adjust the property to either:
Show as Line Item
Hide as Line Item
Best Practices
Use Add-ons for Value-Adds
Shipping protection, gift wrapping, extended warranties, and similar options work well as upsell opportunities.
Keep it Relevant
Offer add-ons that complement your products, e.g., sneaker care kits with sneakers.