You can use PowerExchange for SAP NetWeaver to write data to SAP BW through a 3.x data source or 7.x data source. Based on the version of the SAP BW system that you want to write data to, you can create an InfoSource or DataSource.
To write data to SAP BW, you must complete configuration tasks on both the SAP and Informatica systems. You must trigger the data load from SAP.