What Is an Upsell Product?

About upsell products


An upsell product is a merchant-recommended add-on shown in a pop-up after a customer completes customization and adds the item to the cart. It is similar to a “frequently bought together” offer.


Common upsell products include gift bags, handwritten greeting cards, and virtual membership cards.


Try the upsell flow in our demo store:


Try the upsell demo



How do I configure upsell products?


How it works:
CustoMeow reads and references actual products from your store, then adds them to the upsell pop-up. Selected products are added to the cart together.


1. Create the product in your store


First, create a product in your online store.



2. Open Upsell Management


Then go to CustoMeow’s integration page and click Upsell.


Integration by SKU



Integration by product



After clicking, the Upsell Management pop-up appears, showing every upsell you have created.



Click Manage to batch-delete, duplicate, or edit upsells.




3. Create and configure an upsell


Click Create Upsell.



You are now on the upsell configuration page.


  1. Change the upsell name.
  2. Change the title of the current upsell pop-up. The change appears immediately in the preview on the right.
  3. Add upsell products.



4. Add upsell products


Click Add Upsell Product. CustoMeow will load products from your store, which is why you need to create the product in your store first.



Select a product.



You can choose a product variant. If there are no variants, select Default Title.


Click Add.



The product has been added successfully.



You can add multiple products.



5. Configure single selection and the default product


By default, customers can select multiple products in the upsell pop-up. If you want customers to select only one product, click Choose Only One.



After clicking it, you can configure the default selected product.



6. Add more upsell pop-ups


Click New Upsell Set in the upper-right corner to add another upsell pop-up.



The copy and products in the new upsell pop-up can be freely edited.



7. Preview, save, and integrate


Once configuration is complete, click Preview & Save in the upper-right corner to preview the entire flow together with the customization feature.



Then click Save to integrate the upsell automatically.



Integration successful.



Further Reading


Getting Started



Advanced Features



Add-on Pricing and Upselling


Updated on: 27/10/2026

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