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Sync Outlook 365 to Google Calendar template not deleting events

I have used this template to sync Outlook Calendar (which I use for work) with Google Calendar (which I use for personal stuff). 

The template should add new events from Outlook to Google Calendar, as well as update modified events and remove deleted ones.

But while new events from Outlook are copied to Google, when I delete events in Outlook, they are not deleted in Google Calendar.

How can I fix this?

Please be aware, this is the first time I've used Flow and my coding skills are minimal at best.



- Richard

Community Support
Community Support


Hi @writerandeditor ,


This site seems to be inaccessible. Can you share the specific details of the Flow configuration?


Best Regards,

Community Support Team _ Barry
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

The site is accessible to me. Maybe there's a firewall issue at your end?


Here is the template for the workflow.


Hi @writerandeditor ,


Thank you for the Flow template provided, I checked its configuration, it contains the delete event action, so theoretically has the ability to delete events.

Then you need to check the Flow run history to see why Flow is not executing to the delete event action, which condition is not met.

Also note that only after you have synced an Outlook event in the Google calendar, you could use this Flow to delete the corresponding event. In other words, the premise of the delete event is to use this Flow to synchronize the events in the Outlook calendar.


Please check  Flow run history and get more details.



Best Regards,

Community Support Team _ Barry
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Thanks. I checked the run history for errors. The action passed tests successfully but doesn't run.
The error message is below, but it is meaningless to me. Can anyone advise me on how to proceed?
Start time: Nov 9, 11:23 PM (1 wk ago)
Duration: 00:00:15
Status: Failed
Error: Action 'Create_an_event' failed
Error Details:
Null object cannot be converted to a value type.
at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider)
at Newtonsoft.Json.Linq.Extensions.Convert[T,U](T token)

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