Glossary

Lead

A Lead in B2B sales is an individual or organization that has shown some level of interest or fit for your product or service but has not yet become a qualified sales opportunity. Leads typically involve stakeholders such as marketing, SDRs/BDRs (sales development/business development reps), and early-stage sales reps, and may later expand to buying-committee members on the customer side. The term most often applies to the top of the funnel (awareness and interest stages) and is related to jargon such as inquiry, prospect, MQL (marketing-qualified lead), SQL (sales-qualified lead), and contact.

Importance in B2B Sales

A Lead is the basic input to the B2B revenue engine: without a steady flow of quality Leads, pipeline and closed revenue inevitably decline. How Leads are defined, sourced, scored, and handed off between marketing and sales directly affects conversion rates, sales cycle length, and customer acquisition cost. Clear Lead definitions align teams on which buyers to prioritize and when a Lead is ready for sales engagement versus continued nurturing. Strategically, Leads inform territory planning, capacity modeling, and go-to-market focus (e.g., verticals, ICP refinement), while operationally they drive daily activities for SDRs, AEs, and marketing teams.

FAQ

What’s the difference between a Lead and a Prospect in B2B sales?

A Lead is usually any contact or account that matches basic criteria or has shown initial interest, while a Prospect is a Lead that has been further qualified and is actively being engaged by sales. In many organizations, all Prospects are Leads, but not all Leads are Prospects yet.

Who should own the definition of a Lead: marketing or sales?

Marketing and sales should jointly define what constitutes a Lead, with clear criteria for MQLs and SQLs, and document it in a shared SLA. This alignment prevents friction, reduces “junk” Leads sent to sales, and ensures both teams are accountable for Lead quality and follow-up.

How fast should sales respond to a new inbound Lead?

Best practice is within minutes, not hours; many studies show that contacting an inbound Lead within 5–15 minutes dramatically improves connect and qualification rates. If that isn’t feasible, define and measure a strict SLA (e.g., within 1 business hour) and automate routing to the right SDR or AE.

What makes a Lead “qualified” in a B2B context?

A qualified Lead typically meets your Ideal Customer Profile (ICP) and shows concrete signals of intent or need—often assessed via frameworks such as BANT, MEDDIC, or a custom scoring model. Organizations usually distinguish between marketing qualification (fit + engagement) and sales qualification (confirmed need, timeline, and potential value).

How should we measure the effectiveness of our Leads?

Track metrics such as Lead-to-opportunity conversion rate, speed-to-lead, cost per Lead, percentage of Leads accepted by sales, and ultimately pipeline and revenue generated per Lead source. Comparing these across channels (events, paid ads, outbound, partners, content) helps you double down on the highest-quality Lead sources.