The goal of Value Proposition is to support customers with products and services, to get their "jobs" done, to solve relevant problems of the customers and to offer benefits.
For a value proposition it is essential to first select a specific customer segment: Tasks, problems and benefits are identified for this segment. You should be careful not to focus too much on your own offers, but to obtain a complete customer profile. The elements are then prioritized because some tasks, problems and benefits are more relevant to customers than others. Similarly, products and services, problem solvers and users are collected and prioritized.