Hi @AngelaHicks,
Are referring to moving a deal to closed/lost? I often struggle as well with when a deal is truly lost, as there is always (hopefully) the potential to bring that deal back. I think the lemonade stand analogy makes it a bit easier to see this because if a child is in the middle of purchasing his or her lemonade when their parent picks them up for soccer practice, that may be an analogy of a deal being lost. I hope that child comes back to purchase lemonade, but that deal may not be for an hour, a day, or even a week. As I don’t know when, or if, that potential revenue will come back, I would consider that first loss of a sale a lost deal that is marked as “closed lost”. Would you agree?