CalDAV which one?

There are 2 CalDAV bindings (command and personal). What are there the differences between them? Do I need both for Calendar integration?

As far as I know, the CalDAV personal reads your calendar so you can display the calendar entry on your sitemap. With the CalDAV command you can “send” commands to your openHAB instance if you follow a specific syntax in the calendar entry. (Basically you create a calendar entry “Lights on” and at the calendar event your lights turn on.)
However, I have found the CalDAV personal binding working for a few days only and then all of a sudden it stops working.

Good luck!

Hello, thanks for your prompt reply.
The link below might help in you issue: