In any business idea you have, you need a plan.
For a business plan, it should be a well-written document that shows how your business will evolve.
In a business plan, it can cover everything in 20 to 30 pages. There is also an added 10 pages that you have to insert the management resumes, appendices for monthly projections, and other relevant details. A good summarized business plan should be less than 40 pages long.