What is the Solution block in a Lean Canvas?

Definition

Solution block is the simplest possible answer to each problem, limited to three bullet points maximum. It stops founders from building before validating anything.

Why it matters

Ash Maurya placed Solution next to Problem for a reason: every bullet here must map to a specific pain point. Without that mapping, you are building a Swiss Army knife that does six things poorly. The Solution block enforces focus - the same focus that lets a two-person team out-execute a forty-person competitor. Every dollar and hour spent on features not tied to a top problem is waste.

How it applies

Back to the bakery from the Problem block. Problems were: (1) customers forget Saturday bread, (2) parents cannot visit weekday hours, (3) regulars miss the sourdough. Matching Solution bullets: (1) Friday SMS reminder with one-click reorder link, (2) 24-hour pickup locker at the bakery entrance, (3) standing order for a weekly sourdough reserved with the customer's name on it. Three solutions, three problems, nothing extra. No app, no loyalty program, no mobile web 3.0. The bakery can test all three with a spreadsheet and a Twilio account in one afternoon.

Common mistakes

• Listing features instead of outcomes ("chatbot" is a feature; "answer customer questions at 11 PM" is a solution).
• Writing a solution that does not match any problem in the Problem block.
• Over-engineering - if it needs a six-month roadmap, it is not a Lean Canvas solution.
• Falling in love with a specific technology before confirming it solves anything real.