Delete Calendarseries in iOS Calendar

Question

Hi,

i had a recurring Calendar item. It is called "kompas | Standup".

It was hard to delete that Calendaritem, because it was "hidden" in a Microsoft Teams-Team called "kompas Team".

I made some tests to delete that calendar series.

It was shown in my iOS-Calendarapp, but not in Outlook or OWA.

With

Set-UnifiedGroup -identity "kompas Team" -HiddenFromExchangeClientsEnabled:$False

I was able to see it and delete it in the calendar of "kompas Team".

Before I knew that calendar items can be hidden I forwarded this event from my deleted mails for some tests.

Now I have a calendar series called "Fw: kompas | Standup".

I cannot delete that calendar series.

It is again shown in my iOS-Calendarapp, but not in Outlook or OWA.

I can accept, decline one item in that series, but not the whole series.

If I decline "all items in that series" I is deleted for 1 second, but I is shown again after that second.

In Powershell I can see that event.

LogTimestamp                  : 09/05/2024 11:29:04
CalendarLogRequestId          : 86edf7ce-1ea7-4641-affb-29dd2caa69be
CalendarLogTriggerAction      : Update
ShortClientInfoString         : Other REST clients
LogClientInfoString           : Client=REST;Client=RESTSystem;;;Client=REST;Client=RESTSystem;UserAgent=[NoUserAgent][AppId=66a88757-258c-4c72-893c-3e8bed4d6899];
ItemClass                     : IPM.Schedule.Meeting.Resp.Neg
OriginalStartDate             : NotFound
ItemVersion                   : 8
ParentDisplayName             : Gesendete Elemente
OriginalParentDisplayName     : Gesendete Elemente
IsSharedInEvent               : False
AppointmentAuxiliaryFlags     : NotFound
AppointmentRecurrenceBlob     : 043004300B2001000000C021000001000000000000003E000000232000000A0000000000000000000000000000006069470DDF80E95A0630000009300000C1020000D002000000000000000000000000
AppointmentLastSequenceNumber : 0
AppointmentSequenceNumber     : 0
AppointmentState              : Meeting, Received
ChangeList                    : 763243616C656E6461724C6F6767696E6775CA0000000000000CD10000640000001FD00000460000009FAC000048000000
CleanGlobalObjectId           : 040000008200E00074C5B7101A82E00800000000F60AC423E1DCDA010000000000000000100000000A3D0A5ED36BA448AE1CDC6D56E2928B
ClientIntent                  : NotFound
DisplayAttendeesAll           : NotFound
EndTime                       : 08/02/2024 10:00:00
ExternalSharingMasterId       : NotFound
GlobalObjectId                : 040000008200E00074C5B7101A82E00800000000F60AC423E1DCDA010000000000000000100000000A3D0A5ED36BA448AE1CDC6D56E2928B
IsException                   : False
IsRecurring                   : True
IsResponseRequested           : True
IsSeriesCancelled             : False
Location                      : Microsoft Teams-Besprechung
MapiIsAllDayEvent             : False
ResponseType                  : Decline
MeetingRequestType            : NotFound
ReceivedBy                    : [OneOff "Robert Hagemann", EX:/O=EXCHANGELABS/OU=EXCHANGE ADMINISTRATIVE GROUP (FYDIBOHF23SPDLT)/CN=RECIPIENTS/CN=BE833A635BE444498F36220B98C771EC-RHAGEMANN, 
                                SMTP:rhagemann@dimedis.de]
ReceivedRepresenting          : [OneOff "kompas Team", EX:/O=EXCHANGELABS/OU=EXCHANGE ADMINISTRATIVE GROUP (FYDIBOHF23SPDLT)/CN=RECIPIENTS/CN=50B1A37CBD064206AB953E4FB7F4E8C8-KOMPASTEAM_, 
                                SMTP:kompasTeam@dimedisgmbh.onmicrosoft.com]
RecurrencePattern             : NotFound
ResponseState                 : NotFound
ResponsibleUserName           : /o=ExchangeLabs/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=be833a635be444498f36220b98c771ec-rhagemann
SenderEmailAddress            : /o=ExchangeLabs/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=be833a635be444498f36220b98c771ec-rhagemann
SentRepresentingEmailAddress  : /o=ExchangeLabs/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=be833a635be444498f36220b98c771ec-rhagemann
StartTime                     : 08/02/2024 09:45:00
SubjectProperty               : Einladung abgelehnt: Fw: kompas | Standup

But I don not know how to cancel it.

Do you have you some tricks for me?

Kind regards,

Robert

Answer 1

Hi @Robert Hagemann ,

Welcome to the Microsoft Q&A platform!

 

Accoding to your descreption, it sounds like you’ve been through quite a bit trying to resolve this issue! Here are a few steps you can try to delete the recurring calendar series from your iOS Calendar app:

1. Turn Off Calendar Sync:
   • Go to Settings > [Your Name] > iCloud.
   • Toggle off Calendars.
   • Wait a few moments, then toggle it back on.
2. Delete from iOS Calendar:

• Open the Calendar app.
• Find the event series “Fw: kompas | Standup”.
• Tap on one of the events in the series.
• Tap Delete Event at the bottom.
• Choose Delete All Future Events

1. Check Outlook and OWA:
   • Ensure the event is not showing in Outlook or OWA. If it is, try deleting it from there again.
2. PowerShell Command:
   • Since you can see the event in PowerShell, you might try using the Remove-CalendarEvents cmdlet to remove the series. Here’s an example command:

          Remove-CalendarEvents -Identity "kompas Team" -CancelOrganizedMeetings -QueryStartDate 01/01/2024 -QueryWindowInDays 365
     

   • Adjust the QueryStartDate and QueryWindowInDays parameters as needed.
3. Re-add and Delete:
   • Sometimes re-adding the calendar event and then deleting it can help. Forward the event to yourself again, accept it, and then try deleting it from the Calendar app.

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Please feel free to contact me for any updates. And if this helps, don't forget to mark it as an answer.

Best,

Jake Zhang