Cancelling calendar events via MS Graph no longer working

Question

Cancelling calendar events via MS Graph no longer working

Steve Coombes 25

Hello

On of our applications cancels Calendar events via MS Graph. It has been working fine but has now started returning error 'Your request can't be completed. You need to be an organizer to cancel a meeting.'

The application has permission 'Calendars.ReadWrite' (type=application).

It is a Java application using the MS Graph client. As far as I know, nothing has changed in the app or in the calendars.

Kind regards

Steve

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Answer 1

Andy David - MVP 155.3K MVP

Are you sending a delete or cancel?

Delete is needed here according to the documentation:

https://learn.microsoft.com/en-us/graph/api/event-delete?view=graph-rest-1.0&tabs=http

Cancel only works for the organizer:

https://learn.microsoft.com/en-us/graph/api/event-cancel?view=graph-rest-1.0&tabs=http

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Steve Coombes 25

Hello Andy.

Many thanks for your mail.

I changed the code from:

	client.users( mailbox )
		.events( event )
		.cancel(parameters)			
		.buildRequest()
		.post();

to 

	client.users( mailbox )
		.events( event )
		.buildRequest()
		.deleteAsync();

And it works.

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Cancelling calendar events via MS Graph no longer working

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