How to customize rights to shared calendars


I have an instance of Nextcloud, everything works well.

But, I want to customize the rights on shared calendars. In fact, when I share a calendar with other people with modification rights, they can do what they want.

However, I want when a people reserves a time slot, only it can modify this reservation. If an other people want modify this reservation, he can’t do it.

Do you think it’s possible with Nextcloud and Calendar App ?

Thanks you in advance for your help.

Best regards,

(Sorry for my bad english).

Currently, this is not possible. The file-access-control can do such time-dependend access control for files but not the calendar. Not sure if it would be better to make reservations in a dedicated app (can still be as a caldav-calender). But nice idea for business users (room reservation etc.).

@georgehrke @jospoortvliet anything planned in this direction?


Ok, I hope this feature could be integrated one day one the calendar app, it will be very useful for the resource management.

If someone has some informations about that, I’m interested.

In any case, thank you for your help.


It seems a sensible feature for the Calendar access rights. I would actually bet that Georg already wants to do this - just a matter of time to get to it.