Solution : https://service.sap.com/sap/support/notes/718083 (SAP Service marketplace login required)
Key words :
ume config file 'susrole, ume sends 'backend roles', -called 'frontend roles' assigned, attached file 'badi_implementation, business scenario requires, left hand side, patch level sp03, patch level sp04, entries named 'epe_buyer', implement method 'assign'
Related Notes :
| 655737 | Support Package 03 for SRM 3.0 |