Solution : https://service.sap.com/sap/support/notes/522439 (SAP Service marketplace login required)
Key words :
terms data sources, prerequisites data source, data source editor, invalid data source, symptom user mapping, special characters reason, data source, user mapping, special characters, future versions
Related Notes :
448828 | EP 5.0: Central Note for EP-PIN-USM (User Management) |
448808 | EP 5.0: Central Note for EP-PIN-DS (Data Sources) |