Shared Mailbox Permission - Bug

Recently i got into a situation where i had to streamline the permissions that are given to the shared mailbox.  So i’ve decided to do that in the following ways

1. Create a Shared mailbox
2. Create a group for the shared mailbox
3. Add the users to the Group who needs permission
4. Give permission to the Group on the shared mailbox

Everything went fine. Permissions are set. But users inside the group started reporting that they cannot see the folders in the shared mailbox.  So i’ve started to check all the permission and nothing seem to give a clue

Finally,

I gave permission to a user on the shared mailbox – cool, folders shows up. Seems so wired. how can a user object works but not the Group. I just thought i can try adding the group from the outlook – perfect, folders shows up.

Conclusion,

When you give permission to the shared mailbox throught powershell, you will experience the issue. Instead either give permission to the user object or add the group from the outlook.

Hope this was informative.

VJ