Shared mailbox - Shared mailbox is mainly used to allow logon access for multiple users. The main difference between a user mailbox and a shared mailbox is that the shared mailbox is associated with a disabled user and therefore it is not possible to logon directly to the share mailbox account.…

By default, no restriction is applied and anyone in the Exchange organization can book the resource. To share this give your user account full access to the mailbox for the resource, wait a moment for the permissions to be applied. Then open the mailbox on OWA via the "open other…