SAP APO PPDS Online / In-Class Training SAP Production Planning and Detailed Scheduling (PPDS) reactions to planning-relevant events Determines the pegging-relevant quantity of customer requirements across all applications, Determining the reactions to planning-relevant events, This usage is specific to SAP PPDS. In the PP planning procedure, for each planning-relevant event that can occur for a location product, you specify which action Production Planning and Detailed Scheduling (PPDS) should automatically execute when this event occurs. A planning-relevant event. SAP delivers standard planning procedures that it recommends you to use in certain scenarios. However, you can also define your own planning procedures. You should reconcile these carefully with your planning processes, because only certain event-action combinations can be used effectively within a planning procedure.