Marketing Qualified LeadMQL
By Federico Donatone · Updated October 15, 2026A marketing qualified lead (MQL) is a lead that marketing judges likely to buy, based on fit and engagement, and passes to sales for follow-up. An MQL is not a qualified opportunity yet: it has shown interest, such as downloading a guide or attending a webinar, but no one in sales has confirmed the need.
What makes a lead a marketing qualified lead
Each company writes its own MQL rule, usually as a lead score threshold. The rule combines two tests.
- Fit: the person and the company match your ideal customer profile, for example the right industry, company size and job title.
- Engagement: the person did something that signals interest, such as requesting a demo, attending a webinar, downloading a report or returning to your pricing page.
A written rule can be as plain as this: a director or above, at a company in your target industry and size range, who requested a demo, or who attended a webinar and visited the pricing page in the same month.
A demo request from a perfect-fit buyer often skips MQL status and goes straight to sales. A student who downloads every guide shows high engagement and no fit, and should never reach a rep.
MQL vs SQL
| MQL | SQL | |
|---|---|---|
| Who qualifies it | Marketing, often by score | Sales, after a conversation |
| Based on | Fit and engagement | Confirmed need, authority and timing |
| Typical source | Content, events, website | Discovery call or qualified reply |
| Next step | Sales follow-up | Opportunity in the CRM |
Between the two, many teams add a sales accepted lead (SAL): sales has reviewed the MQL and agreed to work it. Tracking that step shows whether marketing sends the leads sales actually wants.
To see the whole flow, count each stage for the same period: leads, MQLs, sales accepted leads, SQLs and qualified opportunities. The step with the biggest drop is the one to fix first, and it is often not the one people argue about.
Why MQL counts can mislead
MQL volume is easy to inflate. Lower the score threshold or put more content behind forms, and the number goes up while pipeline stays flat. That is why many B2B teams report on qualified opportunities and pipeline instead, and keep MQLs as an internal health check for marketing.
Our B2B Outbound Evidence Standard sets the rule we apply: never promote a lead to the next stage without a record that proves the move. A form fill is a response, not a meeting, and a meeting is not a qualified opportunity until sales accepts it under a written rule.
Outbound works differently. A prospect reached by cold email or cold calling never fills in a form, so there is no MQL stage. The first qualified event is a positive reply or a booked meeting, which is why our guide to B2B appointment generation treats a captured contact and a booked meeting as two different jobs.
How to improve the MQL to SQL handoff
- Agree on one written MQL definition and review it with sales every quarter.
- Send each MQL with context: what the person did, when, and which page or content they used.
- Set a response time target for sales follow-up and measure it.
- Track the MQL to SQL conversion rate by source, so you can cut channels that create volume without pipeline.
- Feed rejected MQLs back into the scoring model with the reason.
For demand that turns into sales conversations, see our guide to demand generation in B2B.