What is a marketing qualified lead (MQL)?
Quick answer
A marketing qualified lead, or MQL, is a person who has engaged with your marketing enough to be worth more attention, for example by downloading a guide, but has not asked to talk to sales. A sales qualified lead, or SQL, has been checked and is ready for a sales conversation.
Last updated
Updated · By Robert Breen
Why it matters for a small business
Marketing and sales often argue about leads. Marketing says it sent plenty. Sales says most of them were not ready. The MQL and SQL labels settle that by agreeing, in writing, what each stage means and when a lead moves from one team to the other. That handoff point is where many leads get dropped, so naming it helps.
The labels also protect the prospect. Someone who only wanted a free checklist does not want a salesperson calling the next morning. Treating them as an MQL means they get useful follow-up at their own pace, and they become an SQL only when they show buying intent, like asking for a demo or a price.
In a real lesson: Build a Lead Magnet Signup Form with an AI Welcome Email
Two Stepthrough lessons show the two kinds of lead side by side, though neither uses the terms MQL or SQL. In the AI Lead Magnet Signup Form lesson, Harbor & Pine Coffee Roasters, a made-up online coffee brand, offers a free guide called The Better Cup at Home. A signup gives a name, an email and an answer to "What do you want to improve?" That person is interested, but has asked for a guide, not a sales pitch. In MQL terms, that is a marketing lead.
In the AI Demo Request Form lesson, someone fills in "Book a demo" for Northwind Scheduling Software, a made-up software company. Asking for a demo is a direct buying signal. The agent's Hot rule, five or more staff and switching within a month, is close to what many teams would call sales qualified, and the reply offers two demo times this week.
Notice how the replies differ. Harbor & Pine sends a warm welcome with the guide and a tip, with "No discounts." Northwind's Hot leads get a meeting offer. The next step matches the stage.
Try this lesson free or read the step-by-step guide.
Common confusions
MQL vs SQL
An MQL showed interest in your content. An SQL showed intent to buy and passed the sales team's check. The move from one to the other should follow a written rule, not a hunch.
SQL the lead stage vs SQL the database language
In sales, SQL means sales qualified lead. In data work, SQL is a language for querying databases. Spell it out the first time when both teams are in the room.
Tips
- Write one sentence that defines an MQL and one that defines an SQL, and get both teams to agree to it.
- Give MQLs a helpful next step, like a guide or a short series of emails, instead of a sales call.
- Track how many MQLs become SQLs over a quarter. If almost none do, the definition or the content needs work.
Related terms
More Business terms
Where you use it: free lessons
- Build a Lead Magnet Signup Form with an AI Welcome Email (Lovable and n8n, 15 min)
- Build an AI Demo Request Form That Qualifies Leads (Lovable and n8n, 15 min)
Prompt templates that use it
Frequently asked questions
- Who decides when an MQL becomes an SQL?
- Usually sales and marketing agree on the rule together, and a salesperson confirms it after a quick check or call. The rule might be a score threshold or a specific action, such as a demo request.
- Do small businesses need MQL and SQL labels?
- Not the jargon, but the idea helps. Separating people who want information from people who want to buy keeps your replies polite and your sales time focused.