To define a Master Demand Schedule name:Before you define a master schedule manually or load a schedule from another source, you must first define a master demand schedule name. You can also set several options for each name.
To define a Master Demand Schedule name:Navigate to the MDS Names window.
Enter a Name and Description for the schedule.
Save your work.
Other Sources
Defining a Schedule Name, Oracle Master Demand Scheduling/MRP and Oracle Supply Chain Planning User's Guide