What Is a Lead? A Plain-English Guide
What a lead actually is, the different types (MQL, SQL and more), how leads are qualified, and how to turn them into customers.
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Last updated: June 2026 · Written by the CRMReviews team
"Lead" is one of the most-used words in business and one of the most loosely defined. At its simplest, a lead is a person or company that has shown some interest in what you sell. But not all leads are equal, and treating them as if they are wastes time and money. This guide explains what a lead really is, the main types, how leads are qualified, and how to turn them into paying customers.
Key takeaways
- A lead is a person or business that has shown interest in your product or service.
- Leads come in temperatures - cold, warm and hot - based on how ready they are to buy.
- The key formal types are MQL (marketing-qualified), SQL (sales-qualified) and SAL (sales-accepted).
- Lead qualification uses frameworks like BANT, CHAMP and MEDDIC to judge fit and intent.
- Winning business is about capturing, qualifying and nurturing leads - not just collecting them.
The simple definition
A lead is anyone who has signalled interest in your business - by filling in a form, downloading a guide, attending a webinar, replying to an email, or repeatedly visiting key pages. That signal is what separates a lead from a random name: they've raised their hand, even slightly. Your job is to work out how interested they are and respond accordingly.
Lead vs prospect vs contact
These terms get muddled, so here's the distinction in plain terms. A contact is simply someone whose details you hold. A lead is a contact who's shown interest. A prospect is a lead you've qualified as a genuine potential customer who fits your ideal profile. The progression goes contact → lead → prospect → customer.
Lead temperatures: cold, warm, hot
| Type | What it means | How to treat it |
|---|---|---|
| Cold | Little or no prior interest or relationship | Educate and build trust first |
| Warm | Has engaged - opened emails, visited pages, downloaded content | Nurture and offer value |
| Hot | Strong buying signals - pricing visits, demo requests | Follow up fast; move to sales |
The formal types: MQL, SQL and SAL
Marketing Qualified Lead (MQL)
A contact who's engaged with your marketing and shows potential interest, but isn't ready for a sales pitch yet. They're curious and in the research phase - someone who downloaded an ebook, attended a webinar or regularly clicks your emails.
Sales Qualified Lead (SQL)
A prospect who's been vetted and judged ready for a direct conversation with sales. They've moved past "just browsing" and shown enough buying intent to warrant a real sales conversation.
Sales Accepted Lead (SAL)
An MQL that the sales team has reviewed and accepted as worth engaging - the formal handoff point where sales confirms the criteria are met and the lead is reachable.
| Type | Intent to buy | Owned by |
|---|---|---|
| MQL | Exploring, not ready | Marketing |
| SAL | Accepted for follow-up | Marketing → Sales |
| SQL | Clear buying intent | Sales |
How leads are qualified
Lead qualification means classifying leads on measurable signals - content downloads, demo requests, budget, role - so you focus on the ones most likely to buy. Sales teams use structured frameworks to do this consistently:
- BANT - Budget, Authority, Need, Timing.
- CHAMP - Challenges, Authority, Money, Prioritisation.
- MEDDIC - Metrics, Economic buyer, Decision criteria, Decision process, Identify pain, Champion.
Whichever you use, the aim is the same: spend your time on leads that fit and are ready, not on everyone equally.
Where leads come from
- Inbound - SEO content, social media, referrals and your website forms.
- Outbound - cold email, cold calling and outreach.
- Paid - Google and social ads driving to landing pages.
- Events & webinars - capturing details from attendees.
To understand how leads move from first contact to purchase, see our marketing funnel guide.
How to manage and nurture leads
Capturing leads is only step one. The money is in what happens next: responding fast, following up consistently, and nurturing the ones who aren't ready yet until they are. That needs three things working together - a way to capture leads (forms and landing pages), automated follow-up (email and SMS), and a CRM to track where each lead stands.
An all-in-one platform like GoHighLevel handles all three: it captures leads, scores and nurtures them with behaviour-triggered automation, and keeps them organised in a pipeline so nothing slips. See GoHighLevel features or the full review. For choosing a CRM, see our best CRM for small business guide.
Frequently asked questions
What is a lead in simple terms?
A person or business that has shown some interest in what you sell - by filling in a form, downloading content, or otherwise engaging with your marketing.
What's the difference between an MQL and an SQL?
An MQL (marketing-qualified lead) is interested but still researching; an SQL (sales-qualified lead) has clear buying intent and is ready for a sales conversation.
What's the difference between a lead and a prospect?
A lead has shown interest; a prospect is a lead you've qualified as a genuine potential customer who fits your ideal profile.
How do you qualify a lead?
By assessing fit and intent using a framework like BANT, CHAMP or MEDDIC, based on signals such as budget, authority, need and behaviour.
How do I get more leads?
Combine inbound (SEO, social, referrals), paid ads and outreach, capture details with landing pages and forms, then nurture with automated follow-up - which platforms like GoHighLevel handle in one place.
Turn leads into customers
GoHighLevel captures leads, nurtures them with automated follow-up, and tracks every one in a CRM pipeline - so none go cold. Try it free for 14 days.
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