Restore deleted mailbox Exchange 2013

Recently we had a customer accidentally delete a mailbox while in the ECP.

Going to Recipients -> mailboxes -> connect a mailbox showed no results

Using the following management shell commands were also fruitless


Get-MailboxStatistics | Where {$._DisconnectReason -eq "SoftDeleted" fl DisplayName,MailboxGUID,LegacyDN,Database


Get-MailboxStatistics | Where {$._DisconnectReason -eq "Disabled" fl DisplayName,MailboxGUID,LegacyDN,Database


I know I needed the GUID of this mysterious mailbox so I ran

Get-MailboxDatabase | Get-MailboxStatistics | Format-list DisplayName,MailboxGuid,Database,DisconnectReason,DisconnectDate > usermail.txt


In here I was able to locate the users mailbox in the text file
DisplayName : First Last
MailboxGuid : xxxxxxxxx-xxxx-xxxx-xxxxxxxxxxx
Database : DB02
DisconnectReason :
DisconnectDate :

I took note of the mailbox guid and ran

Update-storemailboxstate -database "DB02" -Identity "xxxxxxxxx-xxxx-xxxx-xxxxxxxxxxx"


After this the mailbox now appeared in the ECP under connect to mailbox.
I was then able to confirm that the mailbox was reconnected to the user.

I did have to recreate the users alias in the users properties.