First, you will need to have a strong desire to be successful because all successful companies have a well planned and executed marketing plan. Many components comprise their marketing plans and they may vary depending upon whether you are a B2B company, B2C company, a manufacturer, a retailer, a service company, a reseller, a non_ profit or other specialty business.
To make an effective plan, there is a famous rule called 4P's. Here, P's stand for Price, Product, Promotion and Placement. In this another P is added called People. Today while doing digital marketing or the traditional marketing one should understand people or the customers you are dealing with. It's important to figure out what is significant for the business, and later make a plan accordingly.