Wiser Checkout Upsell is a feature of the Wiser app that allows Shopify merchants to show personalized product recommendations or upsell offers on the checkout page. It helps increase average order value (AOV) by suggesting relevant products to customers while they are in the final step of the buying journey.
How To Setup
1) Go to the Wiser dashboard, and from the left panel under “Checkout Extension,” open "Checkout Upsell".
2) Under “Choose Recommendations Type,” select the checkbox for the widget you want to display on the Checkout Page. Then, copy the corresponding Widget ID and click the Save button at the bottom. After that, click on Theme Editor—this will take you directly to the Shopify Checkout Page Extension.
3) Once you're on the Shopify Checkout Page, click on “Add Block” from the left panel and select “Wiser.”
4) Paste the copied Widget ID into the field, add an engaging heading, and click the Save button to apply the changes.
5) That’s it! You can now reposition the widget using Shopify’s drag-and-drop feature. Once you're happy with the placement, click “Save."
You can add multiple blocks by following the same steps.
Requirements & Limitations for Using Checkout Extensions
1. Shopify Plus Plan is Mandatory
Only Shopify Plus stores can use checkout extensions to customize the checkout page.
Standard Shopify plans do not support checkout customizations.
2. Checkout Extensibility Enabled
Must enable the Checkout Extensibility framework via Shopify admin.
Classic checkout customizations (via
checkout.liquid) are being phased out.
3. Limited UI Placement
It only allows widgets in specific areas:
Checkout Sidebar
Shipping step
Payment step
Order Summary
4. Styling & Design Restrictions
Limited CSS access: You must use Shopify’s design tokens and themes.
No full control over custom styles, animations, or scripts.