Guide
1
Create a new customization
Create a new customization.

2
Choose the Cross Sell
Choose the Cross-sell option from Upsell section

3
Configure conditional experience
Add one or more conditions to control when the customization is displayed during checkout.

4
Products and Product count
Choose Products and max number of products that will be shown on checkout



5
Display Settings
Select display settings like (Alignment ,Border-radius, Inner spacing, Product card layout, Navigation Method )

6
Set the priority
Configure the Priority (0–100) to determine the execution order when multiple customizations are eligible.

7
Copy the Placement ID
Copy the generated Placement ID from clipboard icon. You’ll use this in the Shopify Checkout Editor.

8
Activate the customization
Change the Status to Active using toggle button to enable the customization.

9
Preview
Preview shows , How this block looks like at CheckOut.

10
Save the customization
Click Save to store your configuration.

11
Open the Checkout Editor
Go to your Shopify Settings→ Checkout, select your checkout profile, and click Edit.

12
Add the app block
In the Checkout Editor, click Add app block.

Make sure the app block is placed in the same checkout placement you selected in Dynamic Checkout Customizer.
13
Configure the app block
Select the Checkout – Upsell Products app block, drag it to the desired location, and paste the copied Placement ID.

14
Publish your changes
Click Save in the Checkout Editor to publish the customization.

Why does it matter?Cross-sell customization to recommend relevant products during checkout, helping increase average order value (AOV) by presenting personalized cross-sell opportunities at the right moment.
