Upcell Pro shows a beautifully designed post-purchase upsell offer right after checkout, giving merchants a second chance to increase order value without disrupting the buying flow. Configure up to six upsell products, set a discount percentage, and let Upcell Pro automatically generate the discount codes in your Shopify admin. The popup adapts to the storefront language across 11 languages, includes full color and text customization, and works out of the box with no developer required.