Duplicate calendar entries in iPhone calendar

Hi
I just bought a new iPhone 4 and today I synced it with my MacBook for the first time. What I realised was that the calendar on the iPhone now has generated multiple entries for one event. How did that happen and how can I prevent this from re-occurring?
Cheers
Martin

I've had this happen before but did not find an answer short of erasing the duplicates. The same thing happened with my contacts in Addressbook. Good luck.

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Duplicate calendar entries on iPhone, but not in iCal (NOT using mobile.me)

Hi,
I've had a problem for a while (since iOS 3) where I get duplicate events on the iPhone (3GS and 4). It seems to happen for events that have been edited/deleted - they are not edited on the phone, rather a duplicate is made. It seems as if what is supposed to happen is iTunes deletes the old one, then creates a new one, only the old one is not being deleted. This is very annoying, especially for recurring events that get edited several times!
I have found several posts about duplicate contacts and calendar entries but they all seem to be pointing to a conflict with mobile.me which I do not use. This is a simple sync between iCal and iPhone using iTunes.
Does anyone know what could be causing this?

I used to have this issue on my original iPhone (the 2G from 2007). You have to reset your sync data. This should help you; http://support.apple.com/kb/TS1627?viewlocale=en_US BUT don't shoot the messenger on this as I did a quick Google search.

After upgrading my iphone to v5 software I have duplicate calendar entries - please help

After upgrading my iphone to v5 software I have duplicate calendar entries - please help

Have same issue, reset doesn't help (
I can delete unwanted photos and albums following way:
1) Backup all photos from device (Important!!)
2) Connect to iTunes, enter managing device, select 'Photos' link
3) Select checkbox Sync Photos from <My Pictures>, choose 'Selected folders' but select NONE of them
4) Click Apply, agree to Delete All Photos from device
5) Uncheck 'Sync Photos from', click Apply
Now i have cleared all previous synced folders, that i unable to delete from device.

HT1349 My iPhone has duplicate calendar entries

My iphone has duplicate calendar entries what do I do to get rid of it and what did I do to get it , so i dont do that again!!!

Are you using iCloud? If so, go to Settings/iCloud and turn off Calendar. Select to delete the Calendar info. Wait a minute and then turn Calendar back on.

Duplicate calendar entries... only in list view

I have just observed a new phenomenon on my iphone which seems distinct from the duplicate entry problem often described. I seem to have numerous (but not all) entries in my calendar duplicated only on iphone and ONLY in LIST view. Single entries only are seen in DAY view on the iphone, iCal, mobileMe and a google calendar I sync to by busysync. I have been running smoothly for months and I assume the problem has come about because I turned off Push in the settings when abroad recently. If I edit just one of the duplicate entries in list view - by just clicking to the time edit pane, but not necessarily changing anything, the duplicate disappears! If I edit such an entry on iCal or Mobile me, when the sync goes through to the iphone, the duplicate also disappears. I think I can clear this one by forcing the iphone to restore from a backup or something similar, but I am intrigued about this behaviour which suggests a software bug.

I have not understood why this problem was occurring, but I have found a solution which is to force the calendar entries to be reset from Mobile Me. I did this:
1 Did a backup in iTunes in case it went horribly wrong.
2 Went into iphone>settings>Mail Contacts Calendars > (Mobile Me Account) > Switched off calendars - told it to delete entries on iphone.
3 Turned off iphone
4 Waited a bit
5 Turned iphone on
6 Repeated 2 and switched on calendars.
7 Waited a bit for Mobile Me to sync
All calendars restored nicely..
Why this problem occurred in the first place is a mystery. Unlike other punters, I didn't have itunes syncing my calendars to iphone, only Mobile Me........... It has the strong smell of a bug as this problem emerged after many months of trouble free syncing only when I updated to iphone 3.

Ios 5.0.1 duplicate calendar entries

I've just updated to ios 5.0.1 on my iphone 4. Now I get these strange duplicate calendar entries appearing on my iphone calendar, which aren't present at all in iCal on my mac???. I've never had these issues before and I thought that it may have something to do with iCloud, however I'm running OS X 10.6.4 on my laptop and I don't have iCloud settings to edit (I know I require OS X Lion for this to be available) via my settings on my mac.
Now to the I've list:
I've tried deleting the items manually on my iPhone (delete one event or all future instances), but they just don't go.
I've tried deleting my iCloud account altogether on my iPhone, however when I resync via iTunes all they same duplicate events return to my phone???
I've tried ticking the "Advanced/Replace information on this iPhone/Calendars" and then syncing again, but the same duplicate items return.
I've searched forum post after forum post and I can't find a solution to this problem.
I've removed most of the remaining hair through sheer frustration...
Basically the Calendar on my iPhone is totally useless now.
I won't be updating to OS X Lion as all of my audio software/hardware, of which I rely on on a daily basis, works perfectly with 10.6.4
Does anyone have a fix for this?

Oops! spoke too soon!
All seemed to be working fine, but after adding a test item into my calendar on my iPhone, all the duplicate entries magically appeared again.???
So now the annoying phantom duplicate entries are on my iPhone, but strangely not on my calendar on the iCloud.com web site and NOT on my calendar on my Mac.
I don't think I can waste anymore time stuffing around with this. Paper diary for me again I think...
I'm very disappointed as I was very much looking forward to shared calendars!
I hope Apple comes up with a fix soon.
Here's hoping...

How do I get rid of duplicate calendar entries in my notifications?

I managed to get rid of all my duplicate calendar entries on my calendar. I unchecked all but the two calendars I use.
The problem is that when I go to my notifications screen, under "Calendar", it still shows all my entries like three times. How do I get rid of this? It takes up all the realestate on my notifications.

Sounds like your syncing Calendars over the air with iCloud, as well as with a supported Calendar application on your computer. Doing both will duplicate your entries, so do one or the other, not both.

Duplicate calendar entries after switching to z10, need to clear my local calendar

Hi,
While transferring my data from a bold 9900 to my new z10 using BB Link I ended up with duplicate calendar entries, one from my account calendar and another from my local. Some of the entries don't show up as reoccurring so it's difficult to remove. How do I clear all the local entries? I tried searching and only found solutions for the previous versions of the desktop software.
Thank you,

Hey z10bbuser,
Welcome to the BlackBerry Support Community Forums.
Thanks for the question.
You can not clear individual databases in BlackBerry 10. You can clear the calendar individually by manual deletion or you can do a security wipe. This is found under Settings>Security & Privacy. Please Note: A Security wipe will erase all data and installed applications on the BlackBerry Z10.
Let me know if you have any more questions.
Cheers.
-ViciousFerret
Come follow your BlackBerry Technical Team on Twitter! @BlackBerryHelp
Be sure to click Like! for those who have helped you.
Click Accept as Solution for posts that have solved your issue(s)!

8330 and duplicate calendar entries

For some reason I am getting duplicate calendar entries (of the same event) from multiple email addresses. How to I stop this? I'm using Google sync (working fine) but I get entries from my Hotmail, another local ISP and Juno. And Juno doesn't offer a calendar that I know of. 8330 Curve on US Cellular. Some times just 2 dups sometimes 3. I've cleared the Facebook calendar app on the 8330 (that is my Juno account) But I don't use the Hotmail calendar and the local ISP email doesn't offer a calendar function.

Hi Ridgeroader,
Welcome to BlackBerry Support Community Forums.
It sounds like the calendar invitations are being received in different device calendars. Each email account integrated on your BlackBerry has a calendar associated with it. If your receive an invitation in one email account and accept it, it will be stored in the associated calendar on your device. This KB article and this blog post should provide more information on dealing with multiple device calendars: http://bbry.lv/cBptUW and http://bbry.lv/bozTNY
-FS
Come follow your BlackBerry Technical Team on Twitter! @BlackBerryHelp
Be sure to click Kudos! for those who have helped you.
Click Solution? for posts that have solved your issue(s)!

Duplicate calendar entries - but not related to any kind of sync

I went on holiday for 3 weeks and during that time my iPod touch discharged completely. When I came back and charged it up again I saw that it had reset its date back to what I presume is the factory default of 01 January 1970. I set the date and time to the current date and time - and then discovered that all my MONTHLY and YEARLY repeating calendar entries (but not the WEEKLY ones) have all been duplicated. This is not the result of any kind of sync up since (following a complete system rebuild following a virus attack) I have not yet reinstalled iTunes on my PC and I have not knowingly synced with Outlook because I almost never use it. If I delete an entry that has been duplicated then BOTH entries are deleted. Has anyone seen this behaviour and can tell me how I can remove the duplicate entries? I have looked for posts relating to duplicate calendar entries but they all deal with syncing-related problems whereas mine is not. Thanks.

I have a similar issue. I bought an ipod touch last week and today I synced my entourage contacts, and address book. The address book entries are fine, but I have duplicates on my calendar. Now, its not duplicating per day, its duplicating the previous or next day. For instance, I have a birthday listed for today, it will also show for yesterday or tomorrow. What is causing this? I've checked the calendar on entourage and ical and both show correctly. (ical copies items from entourage)

TS3999 Duplicate calendar entries in iCloud

I am really struggling with duplicate entries within iCloud.

zaheadblader,
Follow the Resolution steps in: iCloud: Resolving duplicate calendars after setting up your calendar application for iCloud Calendar.

How to delete duplicate calendar entries on N8?

Hi,
I recently added a .ics file to add some calendar entries into my N8 calendar. But somehow the same calendar file was added multiple times and now I have 5 duplicate calendar entries for each day.
Is there a way to delete these calendar entries without deleting my old calendar entries? The .ics file was a fixture list of a club and has a lot of entries so deleting them one entry by entry is not an option.
Thanks,
Nakul

Normally the fastest and easiest solution is:
Go to calendar/ Calendars Menu/ Hide or Delete any calendars that you can see (leave Personal or any you use the most)
It did the job for me.

Calendar entries on iphone not syncing with outlook calendar

Items that I entered on my iphone calendar are not syncing with my outlook calendar on my office pc. Outlook entries are appearing on iphone calendar, however. Used to work, now doesn't. Recently updated iphone software. Could this be the problem?

i had same problem. everything worked fine backing up iphone to macbook pro and Ical until IOS 5 upgrade, then selective entries on Iphone wouldn't backup to Ical despite repeated attempts. I did what you did, turned off calander iCloud feature so it backs up only to MacBook and it seems to have solved problem.

Duplicate Birthday Calendar SUBSCRIPTIONS (NOT duplicate reminders/entries)

NOTE:
+This is a DIFFERENT problem than the folks with duplicate iCal entries or duplicate reminders. For that, please either go to http://www.nhoj.co.uk/icaldupedeleter/ to download John Masey's iCal Dupe Deleter Applescript or go to one of the many forums on that topic.+
MY PROB:
Somehow, my *_iCal has hundreds of individual Subscriptions to "Birthdays"._* That is, I have over 800 Subscriptions.
*How can I remove all of them so that I do not have to individually delete them?*
*How can I avoid this in the future?*
I am a MobileMe user and I sync iCal between a PowerBook G4 and an iMac (PowerPC) G5. Both computers now operate on Leopard, but there was a long period where my PowerBook - my primary computer - was on Leopard while my iMac was on Tiger.
I already tried iCal/Preferences/ShowBirthdaysCalendar, <turn off><turn on> (I also tried variations of on/off, off/on, on/close window, off/close window, etc.)
+Help me, Obi-Wan. You're my only hope.+
Message was edited by: WBaggins

Why not post in the iCal forum area?
http://discussions.apple.com/category.jspa?categoryID=166

Multiple duplicate calendars

Hey - can anyone help! I’m going crazy here!
I have a G5, and iPhone and an iPad and I’ve been all day trying to sort out a syncing problem. I followed all the Knowledgebase articles, and even chatted to an Apple MobileMe expert - so now I need to turn to the Apple community for help!
When MobileMe (MM from here on) syncs with iPad and iPhone I get six copies of each calendar, although iCal on my Mac only has one of each.
I’ve tried deleting all the calendars, trashing caches and pref files, deleting and reinstating MM accounts on the iPad.
Address Book however sync’s fine - all devices show the same data. So why is calendars showing six copies of the same info?
It’s driving me nuts!
Thanx, Andy

Didn't have the duplicate Help menu problem, but in case this helps, here's what worked for me:
1- In the MobileMe preference panel, switch off Synchronize with MobileMe (in the Sync tab) and Sign Out of MobileMe account (Account tab).
2- Restore ~/Library/Calendars folder from Time Machine to the state it was in just prior to installing Snow Leopard.
3- In iCal, delete the duplicate calendars, leaving only the 'correct' one. (Determining which one to keep can be tricky: in my case I deleted the incomplete 'duplicate' calendars, where some appointment entries were missing).
4- In the MobileMe preference panel, sign back into to MobileMe (Account tab) and switch Synchronize with MobileMe: Automatically (in the Sync tab) back on.
5- In the Sync tab of the MobileMe preference panel, click Advanced… at the bottom right. In the resulting sheet, select any existing entry of your newly upgraded Mac's name and click Stop Syncing Computer…, and confirm that you wish to Unregister. (This clears out the old baggage.)
6- Then click Reset Sync Data… bottom left of the sheet, then select Replace: Calendars. The direction of replacement is important: choose to overwrite MobileMe with your computer.
That's how it worked for me. All seems to work nicely now. Note that in the last step, it seems counter-intuitive to me to overwrite a nice, clean MobileMe calendar with the slightly dubious copy, rescued from duplicates, on my Mac. But I could not get the overwrite to work from MobileMe to my Mac. I had to sync from my Mac to MobileMe.
Hope this helps someone… I'm sure there's a cleaner, more elegant way to resolve this problem, but there you go

After iCloud upgrade i have duplicate iCal entries (iPhone is ok). Why?

After I upgraded to iCloud I now have duplicate iCal entries! My iPhone does not have duplicates which is good. In iTunes I AM NOT syncing my iCal.
Thanks

Robert J McInnes wrote:
MyFord, Mirek,
I have the same problem on iMac: some iCal entries duplicated, some triplicated, and some quadruplicated...
If I change the colour of the On My Mac Calendars, right click on calendar, select Get Info, I can identify those entries, all single.
Do the same on the iCloud Calendars, and the second and third entries on the day (Month View) change colour.
So, the iCloud entries on the iMac are duplicated...
iCal on my iPhone is OK, only a single entry...
Where do I go from here...
I suspect the first thing I should do is back up On My Mac Calendars.
What next?
Robert
Backup the On My Mac calendars (in iCal, File>Export>iCal Archive) and then delete them from iCal

Duplicate calendar entries in iPhone calendar

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