Articles on: UFE - Upsell Funnel Engine

Limitations of UFE

Almost 80% of the limitations of the Upsell Funnel Engine app are directly dependent on the limitations of Shopify Draft Order. What is a Shopify draft order?

Important
|| Upsell Funnel Engine uses Shopify Draft Order to apply discounts to the upsell/cross-sell offers if the widget has a discount associated with the UFE app.

Limitations

You can't use multiple upsell apps along with UFE
Learn more here:Multiple upsell apps and theme support?
Some themes show product pages quickly while navigating from other pages (homepage or collection pages), this is done by pre-fetching the product details in the background, UFE doesn't support these cases.
Some themes also use browser history API navigation to show pages quickly, UFE doesn't support that!
May not work on some themes, but we do support almost all themes.
Learn more here:

Multiple upsell apps and theme support?

Don't work with quick view product display popups.

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Updated on: 04/04/2026

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