The sale happens where your pixel can't see
For lead gen, the real conversion happens days later, on a call, in a CRM, in a contract. Your ad platform only ever saw the form fill, so it optimizes for cheap leads, not closed revenue.
Untracked outcomes

Your calls and deals go untracked
A prospect clicks an ad, then calls or fills a form. The deal closes a week later in your CRM. None of that closing value ever makes it back to the campaign that started it.
Wrong target

You optimize for leads, not revenue
The cheapest leads are rarely the best customers. Optimizing for CPL scales the campaigns that drive volume, while the ones that close real deals get starved.
No line of sight

No keyword-to-revenue line of sight
Which keyword produced your best client this quarter? Without CRM outcomes tied to the click, you can't answer that, so you can't double down on what actually drives pipeline