Checkout offer to order special product once
We are currently on M2.
In order for customers to try new products we would like to promote what we call “checkout offers”. In theory a particular product for which the customer can only order 1 item. Once the item is in the cart it should no longer be visible.
The 1 qty restriction can be achieved by using the inventory setting “Maximum Qty Allowed in Shopping Cart” and have it set to 1.
However when testing this the “purchase” button remain even though I have 1 item in cart. Which I need to disable in someway. I’m afraid this will be kind of complex with custom code etc. Maybe their are built in support already or some ready made extensions to sort this?