Hi All. I had this problem also and I did a couple of things that solved this problem.
At the first moment I found a configuration inside the iPhone calendar application (not the settings). It is an option where you can select which calendars you want to show in your iPhone Calendar. You go to the main screen of the Calendar application and click the top left button named "Calendars". This will show you all calendars and you can select all those you want to show in your calendar or not. The problem was partially fixed, because some of the calendars that I have unchecked, just didn't obey me and keep getting checked back. :-)
Then after digging the web, the second thing I found was this page -> https://www.google.com/calendar/iphoneselect
You log in with your google account and it will show you all calendars available in your google account, yours and the shared ones. You just do the same thing, uncheck those you don't want to sync with your iPhone and be happy forever with alerts for only your schedule. This seems to be the same thing in the Calendar app, but works pretty well.
Hope this helps at least some of you guys.
My wife and i have the same problem, but then the opposite!
We have our personal iCloud Calendars shared as welle as a calendar we both use for our 'home' appointments. They are all shared so we get an e-mail message each time one of us puts an appointment to a shared calendar. That's very handy for both of us, so we know when an appoitment is added.
That was when we were both on iOS5. Now my wife has updated to iOS6 and we have problems (on the phone ).
When i add an appointment, she still gets an e-mail message and also there is a notification in the calendar app is well (also pretty handy). But when she makes an appoitment in a shared calendar, i do not get any nottification at all. No e-mail and no notification in the calendar app as well. Nog i don't know what appointments she has added. However they do show up in the calendar, but no notifications.
She has all the settings turned ON, so we should get notifications....doesn't it?
Anybody know how to solve this???
I have the same issue. Below my discription of the problem...
Rogue alerts are added to Calendar events (iOS 5.1.1) which I make in iCal (OS 10.8.2) and are synced via iCloud.
The alerts are set for both timed events and all day events. Alerts are set for either 0:00am on that day or at the start of the event!
When I look in iCal for the specific event there is no alert set, however when the alert syncs via iCloud to my iPhone4S there is an alert set for this event!! Highly undesirable to say the least. To avoid the alerts from going off I have to manually cancel it in the iOS calendar event.
I checked that the standard alert settings in both iCal and iPhone are off. Tried to toggle on and off on both sides, with reboot inbetween. Then checked with a default setting of 5 mins in advance but then the iPhone synced event gets 2 alerts; 1- with 5 min notice and the rogue one at the start or at 0:00
The strangest thing is that this only happens to my iPhone4S, where my wife is also subscribed to this agenda using her 3GS. Hence new event made on iCal syncs via iCloud to my 4S and her 3GS only sets a rogue alert on my 4S!!
The problems started to occur when I opened my Calendar app a week ago, upon which the app did not show any events. I had to reboot my iphone in order to get the app working again. It seemingly had lost all the events since it gradually started to import them from iCloud again... All seemed fine until the alerts started in the middle of the night
I am having identical issues: I have 3 calendars of relatives in google calendars that are synced and despite having the options turned off in Apple Calendar Version 6 (1645), all the reminders come up!
Apple Software Team, wake up, smell the VOCs and fix this simple issue ( use time machine and fix this 3 months ago )
Unfortunately, that's not the solution although you assumed rightfully that this should be the case.
Assuming that all are also using Macs, you need to go to iCal (calendars showing on the left sidebar)-> right click on the iCloud calendar->get info-> uncheck "events affect availability".
Those using PCs will need to go to iCloud.com and alter the settings there.
Hope this helps.
Same problem. I put off the update to iOS6 until a week ago. Immediately I get the alerts from all shared events. I too have the "Shared Calendar Alerts" only iPhone and iPad switched to off, but the alerts come anyway.
I share calendars through google apps, but the hitch seems to be in iOS6. The switch to turn off "Shared Calendar Alerts" would seem to be broken, or permanently on.
What say you Apple?
Just adding a "me too" to this thread. My wife and I just changed over our iphones from google sync to caldev (well we were forced by Google) and after doing that we now get alerts for each others shared calendar events. Very annoying!
This seems an astoundingly bad problem and I am very surprised to find here it has existed for nearly 5 months with clearly no fix or comment from Google.
Have you tried this link mentioned earlier? Open this with your phone:
I simply deselected the shared calendars that I didn't want to receive alerts for, and hey presto! I can still enable the calendars on the phone itself if I want to see the actual appointments.
Hope that helps you guys, thanks to the original sharer.
Came across this article:
Scroll 3/4 of the way down to "Calendars" and, right below the screenshots it says:
"Note that this setting does not affect alerts for events in shared calendars, only notifications of additions, deletions and modifications of events by other users."
Sounds like notifications of ACTIVITY ON an event are affected by this setting. But this implies that REMINDERS FOR events are not controlled by this setting.
So perhaps the bug is not the bug we think it is. This "Shared Calendar Alerts" setting should either be expanded to include calendar reminders, or reminders should be a separate option.
As a follow-up.
ALL Google Calendar appointments that were not all-day events that were shared with me had a notification set to 15 minutes before the start of the event in the iOS Calendar. When looking at the events via Google Calendar on the web they did not have the notification set.
After having disabled the Google Calendar CalDAV sync in iOS Calendar settings and thus removing all entries from the phone and then enabling it, all events seems to get synced correctly again!
My guess is that when upgrading to iOS 6, all shared calendar events got set with the default 15 minutes-before-start-notification.
But this only solves one of my problems. I still get the notifications from shared calendars...