My team and I here have been endlessly pulling out our hair to figure out the duplicate events thing when coming from an Office 365 calendar. It’s been crazy. I do know that Office 365 doesn’t create persistant UIDs which causes some big problems. The purpose of this thread is to ask a couple questions and possibly make some suggestions.
When I import an Office 365 calendar into Google or my Mac’s iCalendar, neither my Google Calendar or iCalendar ever cause duplicate events on the.ics feed refresh. I know you’re not Google or Apple, so you don’t have access to their code; somehow though, they’re able to circumvent an Office 365 feed from causing duplicates upon import. Maybe there’s a temporary fix that can be instituted though.
What would the possibility be of every time before running the import, it removed previous events brought in from that same feed? It’s not pretty, and may require changing the DB structure slightly to record which events are associated with a feed (side note: that would be helpful for managing the events in the DB also when required), but perhaps that could circumvent the issue. Judging by the number of posts in the forum about duplicate events, it seems that this is an issue affecting a lot of people, and may be worth considering.
I noticed today that all of my events that are in Outlook 2003 synced over to the iPhone two times. In other words my kids birthday shows up twice in the events list below the calendar. I only have the event one time in Outlook. Office 365 (Outlook 2016 for Windows) - Configure Outlook 2016 Office 365 (Outlook 2016 for Mac) - Configure Outlook 2016 for Mac Below are the steps for each outlook client to view your repeating events in List View to make deleting all of them much easier.
All of our schools use Outlook 365, and we have the MS license for TEC; however, as it’s turning out, it’s not really doing us much good at this point. Hi Chris, Thanks for reaching out with your question! I understand how frustrating this issue can be.
This is a tough one indeed. Like you pointed out, the source feed provides a different UID ( Unique and persistent IDentifier) each time for the same event; the standard is that the UID is what you can rely on to distinguish and track events across time and changes. There is unfortunately little we can do when the source feed does not comply with a standard (see ); I checked if it would be possible to purge the events of the same feed from the database. It looks like this would be possible, but I have to point out this will consume more resources, especially if you have a large number of events. In the database all imported events have a line in the wppostmeta table with the metaid = 'tribeaggregatorsource' containing the source feed as metavalue. So I guess the post IDs can be collected with running a search on that. Then remove all entries from wpposts and wppostmeta with those IDs.
Then run the import. Does this help? Cheers, Andras.
I have the same problem except that it is not just related to the Leopard OS in my experience. I received these multiple calendar events that I cannot delete with previous Mac OS's. Here are a couple of things I do: 1. Press the delete key. This sometimes works and sometimes doesn't. When it doesn't nothing happens. When it does delete the item appears again when I switch views or re-open iCal.
I select 'Stop Recurrence' and then choose cut. Once again: When it does delete the item appears again when I switch views or re-open iCal. I've tried this with different phones (which may or may not be the problem).
TREO 650 and NOKIA E-61. Basically the events just don't want to delete. They are usually events that I have imported from Outlook on the PC or have been imported through my cellphone. They tend to be repeating/recurring events such as birthdays and anniversaries. I really hope someone at Apple can look into this and solve the mystery. Best Regards, Steve.
Hmmm, ok I'm able to solve my situation but it may not be for everyone. For some reason everything I said in the previous posts stands. ICal for some reason cannot delete calendar events possible due to the fact that they came from a mobile phone before and there seems to be some sort of corruption in iCal. So when I had some time today (who has time?) I went through my Nokia E-61 cell phone and deleted as many duplicate, troublesome calendar events as I had time for. Then when I just came home I was able to sync with iCal and presto! No more duplicate, non-deleting calendar events.
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ICal was cured! What does this mean? I took 6 months of C programming but I'm sure that doesn't make me an expert. I think that either the cell phone caused the problem or iCal misreads the info or a bit of both. Either way I think iCal should have a filter on data and correct it when it sees something funky. I'm mean really - I think Mac can do this so why not right? Maybe Apple or Nokia will read this, recheck the code and say 'oups' that's what we forgot.
I hope this helps them and everyone it's affecting. Cheers, Steve. I am having the same duplication problem. My hunch is it stemmed from an attempt to sync my calendar with either Plaxo or Daylite 3.5.
I have since deleted all my sync settings and until this afternoon I thought everything was fine. I started receiving multiple reminder notifications from this one pesky event (a repeating item which was shown to END on 12/31/07). I tried deleting the 8-10 entires on my iPhone and syncing with my laptop because every time I try to delete the event in iCal it just gives me the spinning color wheel and the application locks up. Now I have 100+ events on my iPhone.
It is a MESS! I have no idea what to do at this point. I've tried all the ideas on this post to no avail. After a few hours of hit and miss, I was able to come up with a solution for me. Maybe this will help others.
I went back to an iCal backup that I had done a month ago (before I started syncing with other applications) and made a copy of that archive. (Note: I don't think Time Machine would have been useful in this case because I don't know at what point my iCal item/database became corrupt.
I only know that it wasn't before I started syncing with other apps and I don't know the date on that.) From there I made a new calendar in iCal called 'Transfer Calendar' (with the corrupt calendar still in place and active). I selected all the items that had been entered since the previous backup (I have about 8 calendars and only one was effected so I only needed to do this with one, but the solution should work for multiples - just make more 'Transfer Calendars') From there I clicked on each of the entries since the last backup, with the exception of the corrupt entry, and changed them over to the 'Transfer Calendar'. Then I exported each calendar in ICal with the EXCEPTION of the one that contained the corrupt item to my desktop. After making one last archive of the corrupt version of iCal (for 'just in case' purposes), I imported and replaced iCal with my archived backup from one month ago.
I then deleted all the calendars in the recently restored backup (with the exception of the one that contained the corrupt entry) and then imported the individual calendars I just exported (to ensure that I didn't miss anything - I don't think anything else was corrupt but the one entry). After all that, I imported the 'Transfer Calendar' into iCal and added it to my main calendar, the one I had not deleted from the recently restored backup that contained the corrupt entry in the old version. This seemed to do the trick, the only thing I was missing was the corrupt entry. From there I went ahead and made one backup of the archive - I didn't want to have to do all this again if the syncing issues came back to haunt me. Then I went and reset all.mac prefs to overwrite my.mac account (had to sync twice, don't know why but I was prompted to and it worked the second time).
Then after the.mac sync, I set iTunes to overwrite all my iPhone data and sync'd it one last time. After 6 hours of., all better. Bottom line - Apple has some work to do on this. The syncing issues are plentiful since Leopard and I (along with many others in these forums) have had several complaints.
Hope this will help someone out there. Sorry for the long post. Sometimes it is necessary when stuff just won't work like it should. Good luck all. PS - Just for grins, it might not be a bad idea to incorporate a manual backup of your iCal and Address Book every week or so until this issue gets resolved.
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