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Copy, Update and delete appointments from one Office 365 calendar to another Office 365 calendar

Hey all


New to this...


I want to sync one O365 to another O365 Calendar (same tenant). I've started with copying from one calendar to the other on the event if a new appointment got created. That works fine 😉


Now I would also like to automate updates/changes and delete, if an appointment in the original calendar gets changed/altered in any way. I've tested several templates, but getting this error message all the time and cannot figure out what's wrong...



The specified object was not found in the store.
clientRequestId: 36f10767-8fbb-420e-a51e-4d8c513a0603
serviceRequestId: 9ed1b72c-4392-469d-a265-d408649c331c



Any idea anyone?


Of course I would have to go the other direction aswell at some stage. Or is there an easier way of syncing between two O365 calendars?


I know this may sound stupid, but I have to use different calendars of different companies.  And therefor I would like to have them all in sync somehow, so that the users of all those seperate companys do not have to open severall calendars of mine to figure out if I'm blocked or not... also I would use it to comunicate with externals, with different calendars, so some of will see all appointment details, some others just see the place of the appointment and tentative/free/blocked/etc.


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