CALDAV sync with synology

Configuration
1

Hi everybody,

i implemented the caldav-sync to synology calendar by adding these lines to my configuration.yaml.

calendar:
  - platform: caldav
    username: "myusername"
    password: "mypassword"
    url: http://10.10.0.252:5000/caldav/myusername

Calendar syncs correct to HAS and all appointments are within home assistant.

Issue: If i set an all-day event (e.g. a birthday) within synology and in addition to that a reminder (e.g. 1 day before) HA shows the birthday on both days (at the birthday-date and on the day before) in Calendar.

My questions: Is there a way to configure HAS that only the event (e.g. birthday) and not the reminder is shown in the calendar?

This is how it looks like in HAS if i set a reminder within synology calendar:

birth
birth778×186 6.04 KB

Many thanks in advance
Flo

2

looks like that error is within synology calendar (not an issue of homeassistant). if i use e.g. the calendar from mailbox.org everything works fine. Can’t explain, what is wrong with synology calendar. But i my case, i’m fine by using an other one.