You can view everything DAVx5 does while syncing in its verbose logs.
I just setup a Kolab Now Account and installed davdroid to sync the calendar.
However, until now I had no need for a calendar on my mobil devices, therefor I wanted to ask, if there is a calendar app that you could recommend, because it works well with davdroid.
Kind Regards and a Happy New Year
Thank you for the quick answer, in this case I will go with S Planner as well.