Do a search for single item?

When a user presses a button in a repeating group (items), it deletes a item in carts (a separate type). How can I do that?

How do you store items in the cart?

I have the unique ID of the post along with information such as size. I figured it out. All I needed to do is do a search in the cart, and as a condition make the unique id that I store match the unique id from the post, and then use :first item. @scottb50

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