Apple calendar is sending multiple email alerts for a single event with only one alert set.

Apple Calendar Multiple Email Alerts

I have 2 apple calendars. 1 is for daily use and the other is for Birthday & Anniversary reminders. They are both shared on multiple devices. iMac, MacBook Pro, iPad & iPhone. All up to date based upon the os for each one. Catalina & Big Sur, iOS 12 & iOS 14 respectively.

iCloud (myemail@me.com) for the Birthday & Anniversary Calendar is sending multiple identical email reminders (4) for every annual event.

There is a single calendar entry for every event.

There is a single email alert set for each event at 9am the day of the event (default setting).

All devices are synced with the iCloud calendar, email, etc.

These are email alerts so I do not believe, nor have I found any settings to change in “notifications” in system settings.

Nor have I found any settings in the Mac Calendar, iPhone/iPad Calendar or online in the iCloud Calendar to address this situation. 

And of course I have not found an answer through google or I would not be posting this. 

My best theory, after trying every tip I could find online, is each device is somehow creating additional emails. I believe the settings should be shared by the iCloud and the devices should not individually override the iCloud.

However, as I stated above, I have not found the answer for how to correct this irritant. 

I tried to be as descriptive above as possible. If there is something I missed that might help please ask.

If anyone has a solution or any help please post.

Gratefully,

CaddyGo