autoinstall with cron or systemd-timer

Hi *, I did not find a way to install cronjobs for root in the autoyast docu. Since execution time matters in this case, /etc/cron.daily/ is not the way to go. Installing a complete crontab for root would be a way, but may be a problem when one has to combine several entries on the fly. Anyone using that? So i tend to use a systemd-timer, but that needs 3 files: The timer, the service and the actual script to run. What do others use? -- Mit freundlichen Gruessen, Andreas Vetter