Writing your business plan before starting your online business is one thing, but revising it on a regular basis is another thing. You will need to revise your business plan from time to time simply because so many things change very rapidly. Even if a strategy used to work in the past, it might not work anymore and you might be forced to revise your strategies.
-Learn to use constructive criticism to your advantage. I know that sometimes listening to criticism might be hard, but if somebody has to say something about your business and he is right about it, do not hesitate to listen to him and implement his advice in your business plan.
-Make sure the data you included in your business plan is accurate and up-to-date. Since many things change every day, what used be true yesterday does not have to be true today.
-Check regularly whether your ideas worked in the past. Also, check regularly whether your business plan worked and whether your business follows the path you described in your business plan. If your business follows another path and is brining you money, do not hesitate to adjust your business plan to the new path. Remember that your business plan can be flexible if this is what you want it to be.