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What Is a Lead and How to Count Leads

Checked · 4 min read

Written by Mateusz Cieśliński · Creator of LeadScanner

In short

A lead is a potential customer with a recognizable reason to discuss your offer. Count leads only after applying one written rule, such as an inquiry that matches your service area and needs a response. Keep contacts, leads, qualified opportunities, and customers as separate CRM statuses.

What is a lead in sales

A sales lead is not simply a name, phone number, or email address. It is a potential customer with a specific reason for a conversation: they asked a question, requested a quote, submitted a form, or publicly described a problem your service can solve. The more you know about the need, timing, and scope, the easier it is to decide whether the opportunity deserves attention now.

In B2B, leads may come from a decision-maker, an employee gathering options, or a business that is still researching the market. Not all of them will buy. A useful lead definition does not pretend that every conversation becomes revenue.

7×

Fast follow-up matters: firms contacting a lead within an hour were nearly seven times as likely to qualify it.

HBR 2011, Oldroyd, McElheran, Elkington

Lead vs. contact vs. customer

A contact is a set of details or a way to reach a person. It may be a business card, a profile follower, a CRM record, or the author of a public post. A contact becomes a lead only when there is evidence that your offer may be relevant now. For example, a business owner on an exhibitor list is a contact, but not necessarily a lead for an accounting firm.

A customer is a person or business that has bought from you or has an active agreement. A lead comes before that stage. Between the two are usually a conversation, qualification, a proposal, and a decision. Keep those statuses separate. Otherwise, a report can show many “leads” when the team has only collected contacts, or hide how many real inquiries became sales.

Cold lead vs. warm lead vs. hot lead

Cold leads have not shown a clear need yet, or they do not know your business. A local company found in a directory, before you have made contact, is one example. Warm leads have made a signal of interest: they downloaded material, asked about timing in a comment, or said they are considering a service. They need a conversation, but their need may be distant or incomplete.

Hot leads have a specific need and usually a near-term deadline. A post in a public Facebook group saying, “Looking for a bathroom remodeling crew in Chicago, starting Monday,” is a hot lead for a contractor because it states the service, location, and timing. It does not guarantee a sale. It means a prompt, useful reply makes more sense than sending the same offer to people with no visible need.

What MQL and SQL mean

An MQL, or marketing qualified lead, is a lead marketing considers interested enough to pass on, such as someone who submitted a form describing a need. An SQL, or sales qualified lead, is a lead sales accepts as suitable for a specific sales conversation, usually after checking the need, fit, and ability to contact them.

Where sales leads come from

Ads can bring in people who did not know your business before, but their quality depends on the message, audience, and destination page. Keep clicks separate from leads in reporting. A click says someone reacted to an ad. A lead begins when that person leaves their details or makes another signal that gives you a sensible reason to start a conversation.

Website forms collect leads from people who came looking for an offer, consultation, or quote. Ask only for information needed for the next step. A field describing the problem, timing, or location can be more useful than a long form because it helps you assess whether the inquiry fits your business and prepare a relevant response quickly.

Referrals often carry more trust because someone has already connected a need with a provider or business. They still need qualification. A person referred by a friend may have a different budget, scope, or timeline than the customer who made the referral. Record the referral source in your CRM, but do not treat it as a sale by default.

Public Facebook groups show questions and needs in the author’s own words. Only content visible without signing in can be read, never closed groups or lists of people who reacted. LeadScanner monitors public groups and public pages without using a Facebook account.

How to count leads and cost per lead honestly

Start by setting one counting rule. You might count a lead as a person your team actually started a conversation with, or as an inquiry that meets written criteria. Do not count every imported row, every ad impression, or every post author found automatically as a lead.

Cost per lead is the cost of a channel divided by the number of leads counted under the same rule. Include the costs that actually supported acquisition, such as advertising, a tool, staff time spent handling the channel, or other agreed items. Compare channels only when the lead definition and measurement period match. First check your own group for free on the home page, then try LeadScanner for 7 days without a card.

Questions that come with it

What is a lead in sales?

A sales lead is a potential customer who has shown interest in an offer or described a need a business can solve. Leads can come from forms, referrals, ads, or public inquiries. Not every lead will buy, but each one should have a clear reason for a sales conversation.

What is the difference between a lead and a customer?

A lead is before the purchase stage: they may need a product or service but have not decided or entered an agreement. A customer has already bought or has an active agreement. Qualification, a conversation, a proposal, and a decision usually sit between a lead and a customer.

What are warm leads?

Warm leads have shown interest, but their need may not be urgent or fully defined. They may submit a form, ask about a service, or respond to a company’s content. They are worth contacting to confirm the scope, timeline, and fit for the offer.

How much does a lead cost?

Calculate it by dividing agreed acquisition costs for a channel by the number of leads it produced. A comparison is useful only when every channel uses the same lead criteria and the same measurement period.

A lead is not every contact but a person or business with a recognizable signal of need, counted under one shared definition.

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Mateusz Cieśliński — Creator of LeadScanner

About the author

Mateusz Cieśliński · Creator of LeadScanner

A software engineer, graduate of Lodz University of Technology, who builds AI-based systems for a living. LeadScanner grew out of his own work: before it was a product, he was fishing for enquiries in public Facebook groups himself, by hand, every morning, for years — and the measurements in the guides here, dates attached, are his.