In case of the user management engine (UME) referred to a data source served by an ABAP client stack, the user account to access PI/XI information in the web portal must meet the following prerequisites:
The web client connection user must be created in the client of the UME associated ABAP system (normally it is the “production” client, ask to the users administrator).
Following roles must be granted to the user: SAP_XI_DISPLAY_USER_J2EE, SAP_XI_RWB_SERV_USER (exclusively, DO NOT USE A COPY)