A WooCommerce upsell popup offers a shopper a bigger or better version of what they're already looking at, at the moment they've decided to buy. Done well, it reads as a recommendation rather than a sales pitch, and it lifts your average order value without needing a single extra visitor. This guide covers what an upsell popup is, the four moments worth showing one, and how to build one step by step.
This guide uses FireBox, which reads your live WooCommerce cart and product data, so the off...