How to understand which feature exactly to develop when you find a problem?

To understand which feature to develop when a problem is identified, you need to:

1. Identify the root cause — understand what exactly causes inconvenience or failure.
2. Gather user data — interviews, surveys, behavior analytics.
3. Test solution hypotheses — what correction options could improve the situation.
4. Assess business value and priority — how much the feature will solve the problem and impact the product.
5. Prototype and test — create a minimal solution, check user reactions.

Thus, the feature should be aimed at solving a specific problem, confirmed by data, and prioritized for the business.