I am creating a build a box option on my gift box website. The first step is to add the box with different variants before moving to step 2 of adding items from a specific collection to the gift.
I am looking for a way to ensure people do not checkout without adding the packaging in step 1.
I have seen other sites have a flag when you try to add an item without the box and you cannot proceed further, or a pop up at checkout stopping you from checking out.
Welcome to suggestions on the simplest way to solve this.