Reference database
The business data that you import into an OLAP database using Connector, are temporarily stored in a reference database comparable to a Data Warehouse.
You specify, when the data are loaded from the source databases into the reference database. This, you specify for each business group. The data must be loaded, when you create the OLAP database.
You configure the transfer of business data from the reference database to the OLAP database using data connections for cubes.