Can I create an upsell offer with products that I did not register?
Unfortunately, products that are not listed in Shopify admin cannot be included when you create upsell offers. These products will not appear among the options when you create your offers so there is no way you can include them. You must add them as Products in the Shopify admin in order to add them to the offers.
Do I need to set up the products for the upsell pop-ups or the app auto-generates them?
You can actually do both! Depending on your preference, it is possible to manually create the offer to set the products that will trigger the upsell pop-ups and the products on the pop-up itself, or let the app generate them for you automatically.
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