Cannot restore the SoftDeleted mailbox in O365

Question

Hi all,

I have a softdeleted mailbox guid

$oldguid=(Get-Mailbox -SoftDeletedMailbox -Identity test.migration@mydomaincom.mail.onmicrosoft.com).Guid
echo $oldguid
Guid
----
85dc9b16-0100-48f4-81f5-546ac0e71cba

I have new mailbox account guid

2c765720-409f-4745-b11c-8602bbef5e49

When I try to reconnect softdeleted mailbox to new account

New-MailboxRestoreRequest -SourceMailbox $oldguid -TargetMailbox $newguid -AllowLegacyDNMismatch
Cannot process argument transformation on parameter 'SourceMailbox'. Cannot convert the "85dc9b16-0100-48f4-81f5-546ac0e71cba" value of type "System.Guid" to type
"Microsoft.Exchange.Configuration.Tasks.MailboxLocationIdParameter".
+ CategoryInfo          : InvalidData: (:) [New-MailboxRestoreRequest], ParameterBindin...mationException
+ FullyQualifiedErrorId : ParameterArgumentTransformationError,New-MailboxRestoreRequest
+ PSComputerName        : outlook.office365.com

This command works fine

New-MailboxRestoreRequest -SourceMailbox "85dc9b16-0100-48f4-81f5-546ac0e71cba" -TargetMailbox "2c765720-409f-4745-b11c-8602bbef5e49" -AllowLegacyDNMismatch

How can I get mailbox guid and convert its value to string ?

Please give me some advice , thank you very much.

Answer 1

Hi @Jack Chuong ,

it looks like the variable $oldguid is from type Guid.

You can give this a try to write the value in a string variable instead of a Guid variable:

[string]$oldguid=(Get-Mailbox -SoftDeletedMailbox -Identity test.migration@mydomaincom.mail.onmicrosoft.com).Guid
echo $oldguid

---

(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

Regards Andreas Baumgarten

Answer 2

Hi. Thank you for your question and reaching out. I’d be more than happy to help you with your query

It is possible to restore a SoftDeleted mailbox in Office 365, but it is not always straightforward. The process involves connecting to the Office 365 Exchange Online PowerShell and then using the Get-Mailbox cmdlet to list any SoftDeleted mailboxes. Once you have identified the mailbox you want to restore, you can use the Restore-Mailbox cmdlet to restore the mailbox. However, it is important to note that for some Office 365 plans, you may need to create an inactive mailbox before you can restore the SoftDeleted mailbox, in which case you would need to use the New-InactiveMailbox cmdlet.

If the reply was helpful, please don’t forget to upvote or accept as answer, thank you.