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o365->o365 calendar sync - how to?



I'm looking to create a flow or flows that will sync two outlook o365 calendars between 2 seperate tenants.

One is master the other just slave..


So should send all calendar events & changes to


Any way to accomplish this in 1 flow or do I need 3 seperate flows?

1 for any newly created events

1 for changes

1 for deletes?



Community Support
Community Support

Re: o365->o365 calendar sync - how to?

Hi Symbiot78,


I am afraid that it would be not possible to create a flow to sync two Outlook 365 Calendars between two separate tenants.


Please check this documentation for a reference:


Within the same tenant, it would be possible to achieve your requirement. As you said, you might need to create different flows using the triggers “when a new event is created” and “When an event is modified”.



About the trigger “On delete”, it currently has not been supported yet. I have seen a similar one, please vote and comment the idea at here:

Best regards,
Mabel Mao

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

Re: o365->o365 calendar sync - how to?



thank you for taking the time to reply.


I'm not sure why it wouldn't be possible between 2 tenants.. I've already successfully tested it.. and it works..


I'll go ahead and create 3 flows then...

New Member

Re: o365->o365 calendar sync - how to?



Are you willing to share the solution? I'm trying to do this ... and have been successful with a new event ... but I can't get it to update when altered or deleted (when cancelled).


Thanks in advance for any reply

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