May 13 2020 06:43 AM
Hello experts :),
Someone in my company has an issue with internet calendars. He subscribed to his google agenda and the calendar appears in the "other calendar" section. So it seems to be good.
But after a while, there are "copies" of his calendar. CalendarName(1), CalendarName(2), ... (5) for example. It is like if Outlook duplicates calendar instead of overwriting the changes in the calendar.
He tried to delete them but after some time they reappears. Where does it come from? Duplicate option, sync issue ?
May 13 2020 07:17 AM
@kiwivert Hello, are you able to go into the Calendar section of Outlook and tried deleting them? It also could be that he had maybe set up an online sync of Google Calendar. I would check all Calendar settings. In the mean time, follow this link for some help: https://support.office.com/en-us/article/Delete-a-calendar-9BA1364C-BDB0-41BE-8F66-EAF96698D021
May 13 2020 07:40 AM
Hello @firefistmango yes he can delete the internet calendars but after a while they reappears. So I would like to know what is the cause of that.
May 13 2020 07:51 AM
May 13 2020 08:11 AM
He told me he has already :
deleted all Outlook data files,
deleted his Outlook profile,
subscribed to his calendar instead of added it.
He told me he use Outlook on his laptop and on his phone. I wonder if it can be a part of the issue.
May 13 2020 08:29 AM
@kiwivert That could be it, as long as the file is originating somewhere, that is probably causing the issue.
Jun 25 2020 02:09 PM
@kiwivert I've been struggling with this for a while too - did you ever find a solution to it? The previous responses seemed more like wild guesses...
Thanks,
Jonas
Jun 29 2020 11:22 PM
@Jonas Rapp No I didn't find a solution. I am still searching. Maybe it is just a sync problem between google calendar and outlook calendar or a dummy thing like this but I can find what is is exactly.
Sep 19 2021 07:14 AM
I have the same problem: repeated calls of a webcal - calender with c# (OpenSharedFolder(webCalString) ) creates over and over new instances of the subscribed calender in outlook.exe. Details an a code example can be found here: https://developercommunity.visualstudio.com/t/c-microsoftofficeinteropoutlook-opensharedfolderwe/153...
The Microsoft Visual Studio Team says it will be an Office problem. I still look for a solution. Any idea would be mostly welcomed!
Sep 21 2021 02:57 PM
I have had the same issue for about 3 years and still no solution - Ii delete multiple internet calendars, pst files, internet calendar folders, etc. every day or so. I have had my profile rebuilt etc. These only appear on my desktop version of outlook (occured with both 2016 and my current 2019), not the microsoft 365 online version. Hope to hear of a solution one day....
Nov 17 2021 05:06 AM
@mel_jay I have just installed Office 365, the problem persists with Outlook 365.
Jan 16 2022 01:55 AM
I found a solution: Details see here:
Jan 16 2022 01:56 AM
May 09 2024 02:31 PM
Not sure how this solves anyone's problems as I have the same issue Numerous duplicated Internet calendars myself <1% of the people that need this fix are going to write C# code to fix this...
I myself literally deleted all the internet calendar subscriptions - default.pst files to try and fix this and once I restart Outlook upon deleting the Internet Calendar PST file and I subscribe to one of my internet Google Calendars it STILL somehow finds the older versions of the calendar that were supposed to have been deleted. I even cleared out the entire Outlook Cache and it still comes back. I think Microsoft doesn't care about this because it primarily only affects people who are using Google Calendars. Utterly ridiculous that when you select 'Delete' it doesn't actually delete the instance that is stored somewhere. How difficult is this to get correct????
I have spent days of my life trying to fix this stupid thing...
Regards,
Frank