Solution : https://service.sap.com/sap/support/notes/862937 (SAP Service marketplace login required)
Key words :
borobject log_field g_allowed l_allowed t_allowed b_allowed c_alloweduser password, provide external user administrators local user administration rights, crm/isa user administration, tab page 'logon data', central user administration, system-specific password distribution, cua central system administrator, clone-idoc triggered, distribution parameter 'global', internal bapi interface
Related Notes :
830493 | BAPI_USER_CREATE1 in scenarios for self-registration |
785565 | |
142595 |