Therefore, a marketing plan, according to Kotler, is a "written document, which includes the objectives, strategies and action plans regarding the elements of the marketing mix which facilitate and enable compliance with the strategy dictated at the corporate level".
External Environment _The next part of the marketing plan is the external environment. What is going on outside of your business? Business owners should take a look at what is going on in the external environment or industry. Are other businesses in your industry succeeding or closing shop? Is the industry in a growth or declining phase? Could there be threats that could jeopardize your business operations?