# Problem-solution fit: a solution is not a product

> Problem-solution fit in practice: a solution has to fit the customer's working day, not just fix the problem on paper. Three questions to check it before writing code.

- Course: [From Idea to Profitable Product: Building Without Investors](https://productovi.com/courses/bootstrapped-product.md)
- Module: The smallest thing that works
- Lesson 13/30, ~25 min
- Source: https://productovi.com/courses/bootstrapped-product/a-solution-is-not-a-product

## Five shops paid for a promise

**Alex Tutor:** Early February. You're still at my side mentoring GarageDesk, and five shops have prepaid 17,400 UAH for a promise: regulars who forgot their service come back. Now Nina has to turn that promise into something that works on a busy Tuesday morning.

**Nina:** I know what to build. The shop enters a car, we send a message when its next service is due. Two weeks of work.

**Sofia:** Isn't that exactly what they paid for?

**Alex Tutor:** They paid for a result: cars coming back. "Send reminders" is a **solution**, a general answer to "how could this work better?" A **product** is the specific thing someone at reception uses with a customer standing in front of them.

![A mechanic tries to fit a neat new part into an engine bay; it slides in only once he turns it to fit the real gap between the hoses.](https://productovi.com/courses/bootstrapped-product/inline/a-solution-is-not-a-product-illustration-2.webp)

**Alex Tutor:** A right solution can still fail as a product: if nobody has a moment in the day to feed it data, it sends nothing. **Problem-solution fit** means the solution solves the problem and also fits the customer's day.

> **Exercise:** Which statement is a **product** rather than a **solution**?

## The customer workflow: where in the day?

**Sofia:** How do you find that free moment?

**Alex Tutor:** In a solution interview, ask about the day, not about features. "Walk me through what happens when a car arrives and when it leaves. Who writes what down, and where?"

**Oscar:** I asked Martha at Greg's shop. The mileage is known exactly once: at hand-over, when she writes the invoice at the counter, usually on her phone, with the car owner waiting.

![At a repair-shop counter, an administrator hands car keys back to a customer and taps the mileage into her phone in one quick motion.](https://productovi.com/courses/bootstrapped-product/inline/a-solution-is-not-a-product-illustration-3.webp)

*Find who feeds the system and the moment they can do it in seconds.*

**Nina:** I pictured Greg entering his clients once a week. He doesn't even know the mileage of half the cars.

**Alex Tutor:** So the person who pays, Greg, isn't the one who feeds the system. Martha is. If one car takes her more than a few seconds at the counter, it won't get entered, and there will be nothing to remind about.

**Oscar:** One more thing: the message has to come under the shop's name. Car owners trust their mechanic and ignore an unknown sender.

> **Exercise:** Which questions help check whether a solution fits a shop's working day? Choose all that apply.

## Instead of what? The competitive alternative

**Alex Tutor:** Second question: what does the solution replace, and what does that cost? Every problem already has some answer, even a clumsy one.

**Sofia:** At Dennis's shop it's his niece with a notebook. 4,000 UAH a month.

**Alex Tutor:** Elsewhere it's Viber messages typed by hand, a sticker on the windscreen with the next service mileage, or nothing at all. That's the **competitive alternative** GarageDesk has to beat on time, money and hassle.

**Alex Tutor:** And for shops that do nothing at all? Check a claim I keep hearing from founders.

> **Exercise:** **True or false:** if a shop does nothing today to bring regulars back, GarageDesk has no competitive alternative to beat there.

![A windscreen sticker, a worn notebook and a phone with hand-typed messages lie side by side on a garage counter.](https://productovi.com/courses/bootstrapped-product/inline/a-solution-is-not-a-product-illustration-4.webp)

**Alex Tutor:** Put three candidates side by side: automatic reminders, a monthly list of due cars for the shop to call, and better stickers. Discuss each with shops before any code.

> **Exercise:** Match each way of bringing regulars back with its weak spot.

## What could it break? Solution validation as a risk check

**Alex Tutor:** Third question: what new problems could the solution create? A product that fixes one thing and breaks two others gets switched off.

**Oscar:** Paul hates shops that spam him. And Greg asked about sold cars: the new owner would get a message about someone else's service.

**Nina:** And Dennis's niece. If reminders go out on their own, what does she do?

**Alex Tutor:** Good catch. In a family business, taking away someone's task can hurt more than it saves. Ask Dennis instead of guessing.

**Sofia:** So checking a solution is a risk check, not a sales pitch.

**Alex Tutor:** Exactly. That's **solution validation**: describe what it would do step by step, then listen for "that won't work here, because…". That sentence is worth more than any compliment.

**Alex Tutor:** Oscar is about to visit Dennis with the reminders idea. Two ways to open that talk; which one is solution validation?

> **Exercise:** Dennis, a repair-shop owner, pays his niece to call regulars from a notebook. How should Oscar open the conversation with him about GarageDesk's automatic reminders?

> **Exercise:** **True or false:** Greg owns a repair shop; his administrator, Martha, works the counter where cars are handed back to their owners. Greg decides and pays, so the screen for entering cars should be designed around Greg filling in his client list once a week.

## What Nina builds

**Nina:** After the talks: a car goes in at hand-over from a phone in under ten seconds, reminders by date and mileage go out by SMS or Viber under the shop's name, and one tap stops them for a sold car.

**Sofia:** And the stickers?

**Oscar:** Dennis laughed: stickers peel off in the car wash. All five shops chose reminders. He keeps his stickers anyway, and his niece will answer the replies.

**Alex Tutor:** That's the point: the shops' working day picked the winner, not what Nina enjoys building. That's problem-solution fit. Product-market fit comes later, when shops keep paying month after month.

**Alex Tutor:** Before you put the whole route in order, name what GarageDesk has actually earned so far.

> **Exercise:** GarageDesk hasn't launched yet. After walking through their working day, all five shops that prepaid chose automatic reminders over a call list and stickers, once the design fitted the few seconds at the counter. What does that show?

> **Exercise:** Put the steps from a solution idea to a product decision in order.

## Your turn

**Sofia:** Could I try the three questions myself?

**Alex Tutor:** Take Greg's shop. You know Martha, the counter and the phone. Describe how a reminder is born there and where it goes.

**Oscar:** And think about who answers when a car owner calls back after the reminder.

**Nina:** If your description has a step nobody has time for, I want to hear it now, not after launch.

> **Exercise:** In 3–5 sentences, describe how GarageDesk reminders fit into a day at Greg's repair shop, where the administrator, Martha, writes each invoice on her phone at the counter as the car is handed back, the only moment the mileage is known: who enters what and when, what the reminders replace, one new problem they could create and how to prevent it.

> **Key ideas**
>
> - A **solution** is a general answer to "how could this work better?"; a **product** is the specific thing a specific person uses at a specific moment.
> - Check a solution with three questions: **when in the day** does it get its data, **instead of what** (the competitive alternative and its cost), and **what could it break**.
> - The buyer and the user are often different people: Greg pays, Martha enters the mileage at the counter.
> - Compare several candidates, including the clumsy ones people use now, and let the customers' working day pick the winner.

**Alex Tutor:** Next time: launch is on 3 March. What goes into the first version, and what can stay manual behind the scenes?

- Previous lesson: [The first five prepayments](https://productovi.com/courses/bootstrapped-product/the-first-five-prepayments.md)
- Next lesson: [How to build an MVP: sign up, get value, pay](https://productovi.com/courses/bootstrapped-product/mvp-sign-up-get-value-pay.md)

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