It's easy to celebrate a falling cost per lead. It's harder to notice that the sales team is now spending its week calling people who never intended to buy.
Cheap leads can be the most expensive thing in your pipeline, because the real cost includes the time spent chasing them and the good opportunities missed while doing it.
Define what a good lead looks like
Sit down with whoever handles enquiries and agree on the signs of a qualified lead: the right service, location, budget range, timeline and decision-maker. Write it down. That definition becomes the target for every campaign.
Optimise on the outcome you want
Ad platforms optimise towards whatever you tell them is a conversion. If that's any form submission, they'll find the people most likely to fill in forms, not the people most likely to become customers.
Send qualified-lead and sale events back to Google and Meta, through offline conversion imports or CRM integrations, so they learn what a good lead looks like.
Use friction deliberately
A form with two fields will always get more submissions than one with six. But a few well-chosen questions about budget, timeline or project type can filter out poor fits and help your team prepare for the call.
- Ask about the project, not just contact details
- Offer budget ranges rather than open fields
- Explain why you're asking
- Test longer forms against shorter ones on qualified leads, not raw volume
Close the loop every month
Review leads by source and campaign against what actually happened: booked, quoted, won or lost. It's often surprising which channels look expensive per lead but cheap per customer.
Key takeaways
- →Agree a written definition of a qualified lead
- →Feed qualified-lead and sale data back to the ad platforms
- →A little form friction can improve lead quality
- →Judge channels on cost per customer
Common questions
Won't fewer leads hurt sales?+
Fewer but better leads usually free up time to follow up properly, which often increases sales.
We don't have a CRM. Can we still do this?+
Yes. Even a shared spreadsheet that records the outcome of each lead is enough to start.
How quickly do platforms adjust?+
Typically a few weeks once enough qualified events are being sent back.
