Used to get a new historical forecast. This function is
normaly
performed in the beginning of an implementation after all forecast parts have gotten the right
forecast model, parameters, and season profile. This is done to get more
accurate forecast error measures once you are finished with initial forecast
parameter settings, season profile creation etc. This can also be run for
single base flow items in the Demand Forecast Client.
This activity requires that data must be loaded into the Demand Plan Server.
New error measures based on the new forecast parameters, season profile setup.