Glossary • Marketing & Business Leadership
A Marketing Qualified Lead (MQL) is a prospect who has demonstrated enough interest in your product or service — through engagement with marketing content or campaigns — to be considered worth passing to the sales team for follow-up.
The MQL designation is the handoff point between marketing and sales. Marketing's job is to generate MQLs; sales' job is to convert them into opportunities and customers.
An MQL is a lead that marketing has qualified as worth sales attention, based on a combination of demographic fit (company size, industry, title) and behavioral signals (content engagement, page visits, form fills).
MQLs are typically defined by a lead scoring model that combines:
An MQL becomes a Sales Qualified Lead (SQL) when a sales rep has engaged with the prospect and confirmed genuine purchase intent, authority, budget, and timing (often BANT criteria). Not all MQLs become SQLs — MQL-to-SQL conversion rates typically range from 10-40% depending on industry and scoring rigor.
One of the most common causes of sales-marketing misalignment is a poorly defined MQL. If marketing passes low-quality MQLs, sales wastes time and loses trust in marketing. Defining MQL criteria jointly — and reviewing conversion rates regularly — is foundational RevOps work.
A healthy MQL-to-SQL conversion rate is 20-40% for most B2B companies. Below 10% suggests either poor lead quality from marketing or insufficient sales follow-up. Above 60% may indicate the MQL bar is set too high and marketing is under-generating volume.
MQL criteria should be defined jointly by marketing and sales, reviewed quarterly, and validated against actual conversion data. Start with ICP fit (firmographic match) as a baseline, then layer behavioral signals that correlate with actual purchase intent.
Many modern demand gen leaders are moving away from MQL as a primary metric because it can incentivize volume over quality. Pipeline generated and pipeline conversion rate are increasingly preferred as primary marketing accountability metrics.
Mark Gabrielli is a Fractional CMO and COO serving B2B companies in healthcare, SaaS, fintech, and beyond. Results in 30 days.
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