The order, written out
The message carries the quantities, the product names and the options they picked — sliced, whole bean, large. It does not carry the total. They saw that on the page before they sent it, and you confirm the price in your reply, which is where the pickup time and the substitution get settled anyway.
Stock here is a yes or a no, not a count. Nothing is held when somebody adds to the basket, so two people can order the last one on a Saturday morning. In a thread that is one sentence to whoever was second. In a checkout it is a refund.


