How a Planner helps a Sales & marketing personnel?

by understanding their needs and concerns,they must provide their opinion and workable starategies to be effective.

In some big and professional business set up, Sales and Operation Planning {Planner} is an integrated business management process. The function of the Planner is to help Sales / Marketing / Operations focus on all functions of the business. Using MIS data, it reviews customer demand and forecast sales and marketing operations and directions and monitors general company strategies 

Sales Planner or Sales Administrator has a data base of HISTORICAL SALES and can definately support the SALES and Mkt personal to share the SEASONAL , TREND OF sales based on PAST RECORDS / HISTORICAL DATA .  The said works good for existing product market , where you can also estimate the volume performed and the existing market share of the product 

Basically planners are made on the data / informations available to priorities the activities for time management and route planning for travel management to make best use of the time available at the minimal cost.