Hi
At the moment it is technically impossible as the Nextcloud service never gets to “see” the real credentials. The whole authentication process is done on the SSO server and only a ticket is returned. So Nextcloud would have to develop a solution like “save SMB credentials in database”.
Still then it would not be fully automated but the user could e.g. enter the password once it was updated and then Nextcloud could use that to log on to SMB storage until the next password change.
I am not fully sure on integrating Kerberos with SMB though (if there is a more automated solution possible) and for now I got the feedback that I have to use LDAP therefore to have the desired functionality on SMB mounts…