Incomplete question. However, I provided added explanation of the term value proposition.
Step-by-step explanation:
What is the value or usefulness of this service or product to me? By clearly telling your customers satisfying answers to the raised earlier you have communicated an effective value proposition message.
So in other words, an organization should have strong convincing value propositions; so that majority of your intended target market would not resist using that product or service for another alternative.