... On Hand 11,650 Planned Orders Week 752 322 108 46 44 ,090 44 ,000 11,560 88,000 Week 940 40 3 135 58 55,087 44 ,000 47 3 44 ,000 Week 940 40 3 135 58 55,087 Week 940 40 3 135 58 55,087 Week 9 84 422 142 ... Sales and Operations Planning Demand Management Detailed Scheduling MRP Production Purchasing Figure 4. 2 The production planning process Concepts in Enterprise Resource Planning, Second Edition 14 ... Snacker Concepts in Enterprise Resource Planning, Second Edition 26 Forecasting Models in SAP R/3 Figure 4. 8 Forecasting model options in the SAP R/3 system Concepts in Enterprise Resource Planning, ...