“In March 2021, Stripe’s product leader Shreyas Doshi shared a story on Twitter about why most new products fail. In this story, he introduced a new framework for validating ideas called Customer Problem Stack Ranking (CPSR). This validation method uses customer input to identify the importance of a problem you’re interested in compared to the other problems that your customers are trying to solve.
At our startup, we had spent 7 months on customer discovery interviews to identify the problem we were solving but we were struggling to find any traction, so we decided to give CPSR a go. Within 2 hours, we learned that our problem was ranking dead last out of 50 possible problems for both of our top 2 target customer segments. So, we rewrote our website using the top ranking problems from our CPSR and the following week alone we drove 3 months worth of new sign ups.
Given the impact CPSR had on our own startup, I wrote a guide to help others put it into action and overnight it became one of the most upvoted startup posts of all time on Reddit, with comments including “”Best post I’ve ever seen on product management.”” Now, hundreds of startups are now using our guide to build better products that their customers need. I’d love to bring this story and the CPSR method to your community at PMF.”