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PIdea validationUpdated 2 Nov 2026

Product-Market fit

Degree to which a product satisfies market demand and customer needs.

Definition

Product-market fit is the moment a specific group of customers want the product badly enough to use it, pay for it, and tell someone else. It is not a launch date or a compliment from friends. You feel it in retention, pull, and word of mouth — not in a single survey score.

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In the room

How the word shows up in a real conversation.

A founder ships a narrow invoicing tool for CA firms. After month three, firms forward the link without being asked, and churn drops when the price goes up slightly. That pull is product-market fit. A packed launch party is not.

Common mistake

Declaring fit because early users said they “like it.” Likes are cheap. Fit shows up when people come back, pay, and are unhappy if you take it away.

India note

In India, “my uncle’s network will use it” is not fit. Fit is a named buyer — a CA, a kirana, a clinic — who pays from their own budget.

See also

From the store

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