Calendar Sharing on a Shared Mailbox? (Outlook)

[Brax]

I've run into an issue today where a user on a E3 license can't view the calendar of a shared mailbox despite being given permission to do so through that mailbox. I logged in as a different user with read and manage access to that mailbox on outlook web, clicked on "Open another mailbox", typed the mailbox email address in and logged in using a separate window/tab and all good there. When I right click on my calendar and sharing and permissions under this mailbox I send an invite to this user to view the calendar and we then accept it and click on "add" which it prompts you to do through the email invite and then "view calendar". But when we go to look at it there are no entries despite there being 5 events on in the calendar for that mailbox today. Am I missing something? The only thing that may be helpful is that the mailbox is not licensed but I didn't think that could be the issue? Note: the user in question does not have read and manage access to the mailbox and is only being given permission to view the mailboxes calendar. Edited December 17, 2024 by Brax
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[ZeroHour]

How long have you waited?

I just have seen permissions changes take a bit of time to roll out.

[Brax]

How long have you waited?

I just have seen permissions changes take a bit of time to roll out.

 

They were added to it originally by the person with access but mentioned it wasn’t working. I’ve just taken them out and re-added and we waited 5-10 minutes. When they were added originally it had been a few days. Is there a rough time it can take?

[ZeroHour]

I have seen it delayed an hour or so but not into days really.

[Brax]

I have seen it delayed an hour or so but not into days really.

 

I’ve asked them to double check if they can now see it today.

[robintech]

Wonder if it was this

https://admin.microsoft.com/AdminPortal/home#/servicehealth/:/alerts/EX961858/undefined

 

Users may be unable to load shared calendars that they recently added to their Outlook desktop or web clients

[Brax]

Wonder if it was this

https://admin.microsoft.com/AdminPortal/home#/servicehealth/:/alerts/EX961858/undefined

 

It’s sorted now so looks like it!