Validating demand

People can say a lot of nice things about your idea. The question that decides whether you have a business is whether anyone will actually give you something valuable for it — money, a signature or a firm commitment. This lesson is about validating real demand before you bet time and money on a full launch.

Signals of real willingness to pay

There are strong and weak signals, and they are easy to confuse. Weak signals cost the customer nothing: "great idea," a thumbs up, "let me know when it's ready." They feel good but mean little.

Strong signals cost something. The best are, in increasing order:

• Time: Someone spends an hour helping you or filling something out thoroughly.
• Reputation: Someone recommends you to others, putting their name on it.
• Money: Someone pays, prepays or leaves card details.
• A signature: A company signs a letter of intent or a pilot contract.

The rule is simple: the more it costs the customer to say yes, the more you trust the answer.

Pre-sales, waitlists and letters of intent

You do not need a finished product to test willingness to pay. Some common approaches:

• Pre-sales: Sell before you have built, with a clear message that delivery comes later. Someone actually paying is the strongest signal there is.
• Waitlist with commitment: A plain email list is a weak signal. Ask for a small deposit or a card number and you separate the curious from the willing.
• Letter of intent (for B2B): A short, non-binding note where a company confirms it will buy if you deliver what was agreed. No money changes hands, but a signature means far more than a pleasant meeting.

When Maria put up a page where dog owners could prepay a reduced amount for their first three sittings, far fewer signed up than had "liked" the idea on Facebook — but those who paid were real customers she could build for.

Distinguish polite interest from real need

People are polite, and politeness lies. The best way past it is to ask about the past instead of the future. "Would you use this?" invites goodwill. "What did you do last time you had this problem, and what did it cost you?" forces out facts. If someone has never done anything about the problem before, it probably does not burn strongly enough. Also look for whether people already pay for a poor solution today — that is one of the clearest signs of real pain.

Set success criteria before you launch

Decide in advance what it will take for the test to count as passed. "I'll move forward if at least fifteen people prepay within two weeks." Without a threshold set beforehand, you will always find a way to read the result in your favor. Write down the number, the date and what you will do on both a yes and a no — before you start.

Pre-sell with your backbone intact

Pre-selling is powerful, but it comes with responsibility. Be clear that the product is not finished yet, when it will arrive, and what happens if you cannot deliver. Offer to refund without any fuss. Trust is the most important capital a new founder has, and you burn it fast if someone feels tricked.

An example from B2B

For companies, the letter of intent is a strong tool. When Jonas wanted to test whether the accounting firms really wanted the tool, he did not ask for money right away. He put forward a short note: "If you deliver automatic reconciliation at this price by the autumn, we intend to adopt it for at least ten customers." Three of five firms signed. It cost them nothing in cash, but a signature commits in a completely different way than a pleasant "that sounds exciting."

Do this now

Choose one demand signal that genuinely costs the customer something: a pre-order, a deposit or a signed letter of intent. Design the simplest test that produces that signal. Before you start, write down how many yeses you need and by when to count the idea as validated. Run the test — and let the numbers, not your hopes, decide the next step.