I am not sure whether I have enough information to answer your question, but: Do you know his the day to day business for a PM looks like, so did you completel

I am not sure whether I have enough information to answer your question, but: Do you know his the day to day business for a PM looks like, so did you completely understand the business and the problem? If not I suggest to reach out to PMs in your network like in your family, your friends or just through LinkedIn or sth (LinkedIn worked for me here). Ask them whether they help you validating a business idea. Make a (video) call with them and ask them questions to identify where and in what situation your MVP would be helpful. I guess you have some hypotheses that you should verify. That helps you with the first step: Validating that there is a real problem. Then you can go on with the next step and reach out to (new) PMs (again: LinkedIn may be useful here). You are now in a situation where you should know about their daily business such that you can ask questions that lead to the problem. Once this becomes clear to them, say you are building a solution. Ask them whether that would pay for that or better about how much they are willing to pay. You can even try different prices and ask them whether they would pay the price. I am not sure if you have to be able to sell a product before MVP stage. If it is really only a month to go, I would build it and then go back to the PMs you talked to earlier. If they all changed their minds suddenly, then your solution is not the answer to the problem or the problem is not frequent / real / big enough, but you only lost 1 month. But maybe they are happy and are willing to help you. Best wishes from my side; and don't give up yet ;-)