Definition
A person or company who has knowingly signalled interest, left contact details you can lawfully use, and can be reached by name and channel.

Why it matters

Leads are the pool a business grows from. They chose to engage, which makes them worth contacting, and in many places the rules on consent and legitimate interest depend on how the contact was obtained, so check local law. Without a clear line between a lead and a stranger, marketing produces activity nobody can measure and sales spends time on people who never asked to hear from anyone. Grading leads by quality prevents two kinds of waste: a rep losing heart on weak names, and a strong lead going cold because nobody called.

How to apply it

  • Capture only deliberate signals, such as a form, a demo request or a reply.
  • Record where each lead came from and what they did first, so it is clear which channel earned the interest.
  • Add company size, industry and role within minutes, so the lead can be routed to the right person.
  • Score fit and engagement together. A senior buyer at the right kind of company should move faster than someone who opened one email.
  • Agree a handover rule with sales, such as first contact within a set number of hours.
  • Retire leads that never respond, so the list stays clean.

What it is

A lead is more than a visitor. An anonymous visitor is only a session in an analytics report. A lead has taken a step that signals interest, such as filling in a form, requesting a demo, downloading a guide or leaving a card at an event, and has handed over a way to be contacted. A purchased or scraped list is not a set of leads, however long it is, because none of those people raised a hand.

Common mistakes

  • Calling every contact record a lead, which inflates the numbers and hides real demand.
  • Treating all leads the same, whatever their fit.
Worked example

An agency treats a demo-request form as the moment a company stops being anonymous traffic. Each new record is enriched at once with size, industry and role. A large enterprise goes straight to a senior rep, and a smaller company drops into an automated email sequence. No promising lead waits behind an unsorted queue.

  1. Article

    MQL

    A lead that marketing judges ready to hand on.

  2. Article

    SQL

    A lead that sales has accepted as worth pursuing.

  3. Article

    Qualification rate

    How many leads turn out to be worth the sales team's time.

  4. Article

    Progressive profiling

    How a lead's profile grows without one long form.

Where it shows up