Hi Malcolm,

thank you for your reply.
This is a SLES12 SP2 installation from scratch (SLE-12-SP2-Server-DVD-x86_64-GM-DVD1) running on VMware. After finished this basic installation, the SUSE Manager 3 extension was added.
Then tried several times the SUSE MAnager setup procedure ( "yast susemanager_setup" ) without success.

Cheers u10t010
P.S. i'm out of office on 25.May until 29.May