I've been trying to find a way to store a piece of data relative to a customer in my store. Ideally I was hoping to be able to create a Metafield that would store a single numerical value and be retrievable by the customer's id or email.
Any thoughts or suggestions would be really appreciated. Ideally I'd like to be able to handle everything in the liquid layer by editing the html and css of the store directly. A custom app with API integration is another option but less desirable as it doesn't seem necessary and would appear to be a lot more work.
EDIT: Tried piggybacking the order (thinking orders are unique to users) but it doesn't appear that the order object is created until the checkout is complete so that isn't really useful since I want to be able to attribute the user to a session click that led them to the store.
Thanks, Alex