People come in. You find out who they are.
A lead arrives from somewhere — a trade show, a referral, a website form. FoundrySuite holds the company and the person separately, because most businesses buy more than once and it matters that you can see every deal a company has ever had with you rather than just the current one.
Where a field came from is written down next to it. If a model guessed a company size, it says so; if you typed it, it says that too. You can correct a wrong value and FoundrySuite remembers both the correction and where it came from, rather than quietly overwriting it.