add navigational attributes in composite provider
you are asked to provide sales volumes by product group.
However, in the system you find only the product. You want to integrate the product category information.
Note:
Creating following objects for this exercise:

Add Navigational Attributes
In the composite provider, add all the possible navigation attributes for ZEMPL (copy of dummy content P_EMPL)
Add Nav: before the description of the navigation attribute.
Add this to the rows of target of composite provider
Activate the composite provider.
For example, the composite provider can have organization unit from the transaction data as well as from master data as navigation attribute.
In such case, transaction value at the time of sale and master data based on key date might differ.