MQL (Marketing Qualified Lead)

A Marketing Qualified Lead (MQL) is a lead that has demonstrated enough interest in your company through marketing touchpoints — visiting the pricing page multiple times, downloading a guide, attending a webinar — that marketing deems it worth passing to sales for follow-up.

The challenge with MQL definitions: they’re often set by marketing based on activity, not fit. A contact who downloads every guide you publish but works at a 10-person company outside your ICP is technically an MQL but practically useless to sales. This misalignment between marketing’s MQL definition and sales’ qualification criteria is one of the most common sources of sales/marketing friction.

MQL → SQL conversion rate

The ratio of MQLs that sales accepts and converts to SQLs (Sales Qualified Leads) is a key efficiency metric. A low MQL→SQL conversion rate (under 20%) typically means one of two things: marketing is setting too low a bar for MQL, or sales is being too dismissive of inbound leads.

MQLs in outbound-first companies

Many outbound-focused B2B companies don’t use the MQL label at all. When an SDR generates a meeting through cold email, the lead goes straight to an AE for discovery — there’s no marketing handoff. The MQL concept is most relevant in inbound-heavy or product-led growth motions where marketing is the lead source.

Related concepts

MQLs feed into the pipeline when sales accepts and qualifies them. The handoff from MQL to SQL is managed through CRM workflows, usually via HubSpot, Marketo, or Salesforce.