Product-Market Fit
Also known as: PMF
Definition
Product-market fit is the evidence that a product solves a high-value problem for a defined customer segment well enough to produce repeatable acquisition, usage, retention, expansion, and willingness to pay.
Product-market fit is not a founder feeling or a single large customer. It should show up in win rate, sales cycle, activation, retention, expansion, support burden, and gross margin.
When growth stalls, PMF has to be re-tested by segment rather than assumed globally.
Related terms
- Customer Success — The operating function responsible for customer outcomes, adoption, retention, expansion, and renewal health.
- Go-to-Market — The system a company uses to define, reach, sell, onboard, retain, and expand its target customers.
- Net Revenue Retention (NRR) — The percentage of recurring revenue retained from existing customers a year later, including expansion, after subtracting churn and contraction. The single most-watched B2B SaaS valuation metric.
Where this gets applied
- Revenue Architecture — ICP, deal-desk, sales-engineering ratios, MEDDPICC, deal-stage definitions. Move win rates from 29% to 68%.
- GTM Execution — Pipeline coverage, top-down/bottom-up motion, AE/SE ratios, comp realignment, partner-channel structure.
- Unit Economics — CAC payback, NRR, gross margin by segment, cohort analysis, paid-on-bookings vs. paid-on-cash.