This should be phrased in the customer's terms in how it will address the problem you're solving as well as improve their lives or business.Products can have multiple value propositions, but too many can become a distraction.There is no substitute in product development for developing an incredibly strong understanding of the problem space of your target audience.
You can always add more later, but very difficult in the early stages to validate so many and to iterate to a great solution for each of those value propositions. Strategic Differentiation While the value proposition states the value your solution will provide to the end customer, your strategic differentiation is more company focused on describing what unique assets or capabilities your solution will have or take advantage of to make it a superior offering.
As you iterate, developing a more detailed understanding of your acquisition strategy involves understanding the cost of acquisition of customers for each of your primary acquisition channels and becomes a very important set of hypotheses to test. Monetization Strategy Equally important is understanding how you generate revenue from your product or service.
Do you plan on implementing direct means through transactions or subscriptions?
Personally I find the most efficient way to operate during the earliest phases of a startup lies in between a formal business plan and unstructured iteration.
The process I've used involves documenting your initial product/market fit hypotheses, systematically validating each of the most uncertain hypotheses, and continually iterating on and updating those hypotheses as your team learns through customer validation, MVP launches, and future product iterations.