This should not really be a question, but we will answer it anyway, once and for all. Planning is not optional. You might think that you have a small and straightforward implementation and, to save time and money, you should just get the software installed and start using it. There may be some software for which this approach works. This will not work for Dynamics GP. In the long run, you will spend more time and money fixing things if you do not plan your implementation. You may also never get the intended results from Dynamics GP without proper planning upfront.
Planning does not have to be a scary prospect, or something that takes an inordinate amount of time and produces a 200-page document. There is a fine line between not enough planning and over-planning. For a typical implementation in a small to mid-size business, planning every detailed step of an implementation is not warranted. You should plan for key steps, dates, and deliverables.
Many...