You should allow yourself a couple of months to write the plan, even if it's only a few pages long. Developing the plan is the "heavy lifting" of marketing. While executing the plan has its challenges, deciding what to do and how to do it is marketing's greatest challenge. Most marketing plans kick off with the first of the year or with the opening of your fiscal year if it's different.
In addition, unified understanding of marketing plan according to experts that according to MC Donald. According to Strategic Marketing Planning is a management process that leads to marketing planning. Planning is a logical sequence and a series of activities towards the determination of marketing objectives and formulation of plans to achieve goals.