Solution : https://service.sap.com/sap/support/notes/906353 (SAP Service marketplace login required)
Key words : 
ebp enterprise buyer professional, attached support package, symptom srm/ebp, start transaction se91, bbp_ium message class, central user administration, srm/ebp system, bbpusermaint administration service, child system, web transaction
Related Notes : 
       
| 529163 | |
| 402592 | EBP in the environment of a Central User Administration |