Developing a marketing plan is one of the most important things you can do to ensure that your business will make a profit. There are basic reasons for developing a marketing plan:
It forces you to identify your target market.
It forces you to think about both short and long-term marketing strategies.
It looks at your business as a whole and ties together market objectives.
It allocates limited resources to create the greatest return.
It provides a guide to measure progress and outcome.