Online Help - NEO 3.8 ... Optimization (OPT) Inventory Planning Multi-Tier Inventory Planning Invoking the Multi-Tier Inventory Planning Engine Viewing the Multi-Tier IP Recommended Policy Report Viewing the Multi-Tier IP Search Details By Site Report Viewing the Multi-Tier IP Search Details Report Viewing the Multi-Tier Inventory Planning Safety Stock Review Viewing the Hierarchical Report for Multi-Tier Inventory Planning Calculating the Mean Lead Time and Standard Deviation Lead Time of a Buffer Lane