External calendar management

[BenBaz]

We are looking for a solution to enable admin support from an outside entity to fully manage O365 users calendars without provisioning accounts for them on our O365 tenant.  Is anyone aware of a viable solution for this?  The outside entity can have as much as 15 people that will be providing these services.  Maybe a 3rd party solution with a sync agent?  I am aware of booking solutions but that will not work for this use case.  The admins need full read write access to the calendars.

Thanks

[#2]

If a person needs to do it, they need to have a mailbox within the organization/be licensed for it. You can use a programmatic solution though, something that uses the the Graph API or EWS...

[#3]

@Vasil Michev Thanks.  I am looking for a 3rd party solution that possibly uses an API to manage the calendar.

[#4]

Hi @Vasil Michev,

could you please let me know if it's possible to create a "programmatic solution" that does not use Microsoft 365 account?  

[#5]

@Victor Ivanidze I agree. Do not want to have to manage 15 accounts for admin purposes of peoples calendars.

[#6]

@Victor Ivanidze Isnt that what Application permissions are for? 

Claim value

Calendars.Read

Permission display name

Read calendars in all mailboxes

Permission description

Allows the app to read events of all calendars without a signed-in user.

Granted you are the programmer here, not me, so you probably know best whether this is applicable for the above scenario.

[#7]

Hi @Vasil Michev,

thanks for your answer. If saying "application" you mean Azure-based one, then I think anybody need an office 365 account just to create the Azure application  itself.  It might be I'm wrong here.

[#8]

You dont need a "dedicated" account for that, if you are using O365/Azure AD already, you can create/use AAD-integrated apps.