Specify which transfer method you want to use to load data into SAP BI. Specify the transfer method in the SAP BI Administrator when you define the Transfer Rules-Transfer Method and the InfoPackage-Data Target.
You can use the following transfer methods to load data into SAP BI:
IDoc transfer method
PSA transfer method
In an SAP BI version 7.3 system, you use the PSA transfer method to load data to the PSA using a 7.x DataSource.