Transfer of DP Demands to PP/DS 
Purpose
Demands creating in Demand Planning need to be transferred to Supply Network Planning and Production Planning and Detailed Scheduling (PP/DS) to enable suitable receipt elements to be created or assigned to cover these demands. To transfer the demand plan to PP/DS, you release the demand plan to Supply Network Planning. During this process, demands outside the defined production horizon are transferred to Supply Network Planning, whereas demands within the production horizon are transferred to PP/DS. The demands are therefore transferred to either medium-term planning or short-term planning horizons.
Prerequisites
Process Flow

Make sure that you enter an SNP version that is also used for PP/DS. To enable demands to be transferred to PP/DS, you must consider the length of the production horizon when defining the planning horizon.