Shared mailboxes in Microsoft 365 can be converted (back) to a user mailbox. This can be necessary when you need to access the mailbox directly (from an application or specific device) or accidentally convert the wrong user mailbox to a shared mailbox.
Keep in mind that a user mailbox requires a license at all times. This can be a Microsoft 365 plan which includes Exchange Online, or an Exchange Online only plan. Without the license, you won’t be able to access the mailbox.
In this article, I will explain how you can convert the shared mailbox to a user mailbox, using the admin center or with PowerShell.
Convert Shared Mailbox to User Mailbox
There are two ways to convert the shared mailbox, we can use the Exchange Admin Center or PowerShell. Let’s start with the Exchange Admin Center.
The shared mailboxes are listed in the Exchange Admin Center between the normal mailboxes. You can either search for the name of the shared mailbox in the list or use the filter to show only the shared mailboxes: