We wanted to ask if there is a possibility, or tool, with which we can migrate the biggest part or the most important parts of an existing samba4-domain into a new an fresh installed UCS-Domain?
Are there any ways or empirical values?
I guess the current samba4-domain is not UCS based. Several people made samba4 based Zentyal migrations or self installed samba4 migrations to UCS using the UCS AD Takeover
The general AD Takeover documentation from univention I already provided a link for. Regarding experience you could e.g. search for Zentyal or just Samba4 and look through the topics.