Maintaining Location-Dependent Product Master Data 
Prerequisites
Your system administrator must maintain unique identifiers for valid planners. Only these planners can be assigned to a location product in Master Data Administration. You can assign the planner as follows: in APO Customizing, choose Supply Chain Planning ® Specify the Person (Planner) Responsible.
Procedure
The relevant fields in the product master are populated with the data specified in the profiles you selected. If you modify this data, the product master cannot be maintained globally via the profiles. Create and maintain master data profiles in Customizing. In Customizing, choose Advanced Planner and Optimizer ® Supply Chain Planning ® Supply Network Planning ® Profiles.
On this screen you can see both the tabs for global product master data, see
These tab pages are based on location-specific product master data. The SNP1 and ATP tab pages contain both global and location-specific data. Unlike the global product view, the location product view also shows the tab pages containing the global product master data.
For further information about the maintenance of data for the various applications, see also:
Integration documentation:
OLTP – PP/DS