Trying to understand the purpose of leads vs deals

alturic Member Posts: 1
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Hi all, I'm trying to understand the... purpose/point of a lead versus a deal from the context of, to me, a lead should be meant for people (and resulting communication) prior to a deal. You talk to the lead, back and forth, negotiate, etc and then you convert it to a deal. But by that point I would have only converted the lead to a deal if the lead told me they were ready to proceed - but if you went with that logic, there'd be no point in needing to mark a deal as lost?

I don't really like the thought of having every communication being considered a deal either as we used to do that but it became just as messy.

So I suppose my broader question is, how is everyone else using leads -> deal or leads vs deals?