A professional differntiation between Marketing & Sales is very slim, although both complete each other, but still both are linked in a way or another. There is a difference between both in practice, While Marketing is the art of creating needs, Studying the markets, recommends strategies and states policies and procedures for promoting products and/or Services, Sales execute those policies and procedures in the market.
Apart from this relationship, a marketer role starts from before planning an industry, to check on the market needs, requirements, values, etc... Across to the planning of the product package and appearance towards the planning of the strategies to sell that product. All during the planning stages; the marketer should be aware of his market, should have all the updated data about the macro environment as well as the micro status sorrounding the launch of the new product.
The Sales role comes after, to make sure that the strategies have been implemented, and sales have been done. A wise salesman does not wait for a marketer to draw his annual targets. He should refer to the marketing strategy and accordingly design his own targets and break them down into segments and months. The activity of the salesman in the market rewards the marketing strategy which has been put by the marketer.
So, in short both complete each other, while the first works on studies and planning the second works on execution and feedback.
I wish I could cover a little part of the difference which as I see it very negligible .
Nabeel Al Wazzan
<link no longer exists - removed>
9th November 2008 From Kuwait