Lead
In short
A lead is a potential customer who has shown interest and shared their contact details with you, for example through a form, a funnel or a lead form.
A lead is a person or company that has shown interest in your offer and left their contact details – for example an email address and phone number in a contact form, a funnel or a lead form on Meta or LinkedIn. Leads are the foundation of all sales work in B2B, real estate, recruiting and coaching.
Types of leads
Not every lead is at the same stage of the buying process. A common breakdown:
- Cold lead: downloaded a white paper, for example, but has no concrete buying intent yet.
- MQL: meets marketing's criteria and is ready for further nurturing.
- SQL: has been vetted by sales and has real need, budget and decision-making authority.
- Opportunity / deal: a concrete offer is on the table.
Example
A real estate campaign on Meta costs $1,500 and brings in 60 leads. That looks like $25 per lead. Sales then finds out that only 12 leads can be reached and actually want to sell, and 2 properties get listed. What matters is not the number of leads, but what happens to them.
Measuring leads properly
Ad platforms count a lead as soon as a form is submitted. They don't see what happens afterwards in sales. For performance marketers this means: a campaign with lots of cheap leads can be worse than one with a few expensive leads if the cheap ones never buy.
LeadMetrics attributes every lead to the session it came from – using the session ID, the email address or the phone number, up to 90 days back. With lead tracking you see the full journey for each lead, including the click history. If you also connect your CRM (HubSpot or Close) or your payment provider, you see for every campaign how many leads turned into deals and revenue.
Common mistakes
- Optimizing for volume only: More leads don't automatically mean more revenue.
- Not cleaning up duplicate leads: People who sign up twice distort your cost per lead.
- Not sending lead quality back to the ad platform: Without feedback on which leads bought, the algorithm keeps optimizing for form fillers instead of buyers.
Use the lead value calculator to work out how much a lead can be worth to you.
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Frequently asked questions
Guides on this topic
Campaign Tracking with UTMs and Click IDs: Setup Guide
Set up clean campaign tracking: a UTM naming convention, dynamic parameters in Meta and Google Ads, click IDs, common mistakes and how to test it all.
Read guideMeasure Real ROAS in Lead Generation: From Click to Closed Deal
How to measure real ROAS in lead generation: attribute CRM revenue to campaigns, read CPL, CPA and ROAS correctly and send deal values back to Meta and others.
Read guideSocial Media KPIs for Lead Generation: Which Metrics Matter
The key social media metrics for lead campaigns on Meta, Instagram, TikTok and LinkedIn: from reach and CTR to cost per lead, cost per acquisition and ROAS.
Read guideArticles on this topic
- From CRM Lead to Real Conversion: No More Flying Blind in Performance MarketingHow CRM/AdSync makes the true value of your campaigns visible – and why it's the game-changer for data-driven growth.
- Client-Side vs. Server-Side Tracking: Why One-Code Tracking Is the Next StepPrivacy, page speed, and conversion tracking compared – and why LeadMetrics' One-Code Tracking unites both worlds.
- META Andromeda Update - Tracking ComplicationsMeta (formerly Facebook) has rolled out Andromeda, the largest update to its advertising algorithm to date – fundamentally changing how Facebook Ads and Instagram Ads are delivered. For all marketers, advertisers, and agencies, one thing is now clear: those who don't have conversion tracking under control will lose visibility, revenue, and scalability.
- Tracking without CAPI, Pixel Chaos, and Developer OverheadWhy modern marketers rely on Direct Track, one‑code tracking, and automatic form tracking
Related terms
All termsMQL · Marketing Qualified Lead
An MQL (marketing qualified lead) is a lead that, based on marketing's criteria, shows enough interest and fit to be actively nurtured or handed to sales.
SQL · Sales Qualified Lead
An SQL (sales qualified lead) is a lead that sales has vetted and classified as ready to buy – with a real need, budget and decision-making authority.
Lead Generation
Lead generation is the process of making potential customers aware of your offer and capturing their contact details, for example through ads and funnels.
Cost per Lead
Cost per lead (CPL) is the average amount you pay to acquire a single lead: ad spend divided by the number of leads generated.
Lead Value
Lead value is the average revenue or contribution margin a single lead brings in: customer value multiplied by the lead-to-customer close rate.
CRM · Customer Relationship Management
A CRM (customer relationship management) is a system for managing contacts, leads, deals and all communication with prospects and customers in one place.