User-Specific Settings 
You can define user-specific settings in various processing situations. User-specific settings are all stored in the same table, regardless of the function in which you define them.
You have the following options for defining user-specific settings:
- In Customizing for Production, you can define user-specific settings by choosing Bill of Material → Define user-specific settings.
- Defining User-Specific Settings in the BOM Menu
- Defining Default Values as SET/GET Parameters