Dear Proton Support Team,

I have been using Proton Calendar together with my partner to manage our family calendar. The ability to share a calendar and edit it collaboratively is very valuable to us.

Issue:
At the moment we only receive reminders for events that we create ourselves. When my partner adds a new event (even if it is scheduled several weeks ahead) or modifies an existing one, none of us receives any notification—neither a push notification nor an e‑mail. Consequently, we often discover new entries only when we manually scan the calendar.

Desired behavior:

Automatic notification (push or e‑mail) for all collaborators whenever another user creates a new event in a shared calendar or edits an existing event.
Ability to filter the notification type (e.g., only for new events, only for edits, only for events that are more than X days in the future).
On iOS, a brief banner such as “New entry from [Name]” should appear, allowing the recipient to view the entry immediately or dismiss it.

Benefit:

Prevents important appointments from being missed, especially for long‑term planning (vacations, doctor visits, school events).
Saves time because we no longer need to scroll through the entire calendar to spot changes.
Increases the appeal of Proton Calendar for families and teams.

We would appreciate it if this feature could be considered for a future update. I’m happy to provide further details or answer any questions.

Thank you for your work and for considering our request.

Best regards,