Notification for appointments in subcribed calendar


I want to get a notification in advance for subcribed calendars in general.
Just to set it in example to 1 day, 1 hour, etc. for alle items in there.

Nextcloud version: 27.1.5
Operating system and version: Ubuntu 22.04
Apache or nginx version: Apache 2.4.52
PHP version: 8.2.14

Are there any ideas or possibilities?