Microsoft 365 admins often search for a way to convert a user mailbox to a shared mailbox. If you are one of them, this blog is for you.
When you convert a user mailbox to a shared mailbox, all the existing emails and calendars are retained. Only the type of the mailbox is changed.
- When an employee leaves an organization, the administrator can convert the mailbox to a shared mailbox to share data with team members.
- Since a shared mailbox doesn’t require a license, the administrator can convert former employees’ accounts to a shared mailbox.
- When a mailbox needs to be accessed by multiple users, you can convert it to a shared mailbox.
Note: When you modify a user mailbox to a shared mailbox, the mailbox must have a license. After conversion, you can remove the license.
You can convert an Office 365 mailbox to a shared mailbox through Exchange admin center (EAC) or PowerShell. This blog explains both methods with detailed steps. You can choose any one of the methods based on your convenience.
- Go to Exchange admin center –>Recipients –>Mailboxes.
- Select the mailbox which you want to convert.
- Under ‘More Actions’, Click Convert to shared mailbox and ‘Confirm.‘
It will show progress like “Mailbox is being converted from regular type to shared type.”
Note: When you get the shared mailbox size and it is found less than 50 GB, the license for the mailbox can be removed.
You must connect to Exchange Online PowerShell to convert mailbox to shared mailbox using PowerShell and run the following cmdlet.
Set-Mailbox –Identity <MailboxIdentity> -Type Shared
Set-Mailbox –Identity [email protected] -Type Shared
It will change the user mailbox Sales to Shared mailbox.
If you want to convert shared mailbox to user mailbox, use the below syntax.
Set-Mailbox –Identity [email protected] -Type Regular
You can use ‘Type‘ as Room and Equipment to convert user mailbox to room mailbox and equipment mailbox, respectively.
How do you Know this Worked?
To verify whether the mailbox has been converted successfully, you can use the Get-Mailbox cmdlet as below.
Get-Mailbox –Identity <MailboxIdentity> | ft RecipientTypeDetails
After converting a mailbox to a shared mailbox, you can remove licenses from the mailbox if the mailbox size is lesser than 50 GB, litigation hold, and in-place archiving are disabled. You can also use the PowerShell script to identify licensed shared mailboxes with the mailbox size, litigation hold, and in-place archiving status.
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I hope this blog will help you in converting user mailbox to shared mailbox.