Define Master Schedule Set Master Schedule Sets Maintain Period Unit Calendar Planning Period Units Define MS Level 1 Part Master Schedule Level 1 Part Enter Time Phased Safety Stock Inventory Part Time Phased Safety Stocks Inventory Part Planning Data Define Planned Netting Group Projects Planned Netting Group About PNG Planned Netting Group Planned Netting Groups PNG Default Settings Perform Project MRP per Planned Netting Group Perform PMRP per Project PNG Copy Period Template Period Template Maintenance Parts with Time Fence Mismatch Parts with Time Fence Mismatch Create Period Template Period Template Maintenance