You can integrate BEx and BW objects into the portal using the role upload function.
Role upload is a function that you can use for the following scenarios:
Before you can upload objects to the portal from the BW system, the following conditions have to be met:
You need the SAP Basis Plug-In into every BW system that you want to upload from. Only then will the functions needed for the upload be completely available.
You need authorization S_RFC in the BW system for function group PWP2.
You need to create a system in the portal within the portal system landscape for every BW system that you upload objects from.
More information: Automatically Configuring BI Java .
For more information about the functions of role upload, see Upload of Roles from Back End Based Systems .