You can assign a MultiProvider to the workspace. This has the following result:
On the Central Data tab page in the administration transaction, all InfoCubes belonging to the MultiProvider are displayed and can be selected for use in the CompositeProvider.
You cannot change this assignment once a CompositeProvider has been created.
The MultiProvider's links are taken over automatically if you use InfoCubes from the MultiProvider defined in the workspace in a CompositeProvider.
A query based on this MultiProvider can be used as a referenced query for a CompositeProvider.
The authorizations on the MultiProvider are applied for query execution.