PowerShell bulk modifies the user's UPN suffix

Applicable product: Windows Server activedirectory queries the user for a blank UPN in AD

Get-ADUser -Filter * -Properties * | where {$_.UserPrincipalName -eq $null} | Select-Object name,SamAccountName,UserPrincipalName

Set the UPN suffix

Get-ADUser -Filter * -Properties * | where {$_.UserPrincipalName -eq $null} | Select-Object name,SamAccountName,UserPrincipalName | foreach {Set-ADUser -Identity $_.name -UserPrincipalName ($_.SamAccountName+"@contoso.com")}

Query results

PS c:\users\administrator> get-aduser-filter *-properties * | where {$_. Userprincipalname-eq $null} |         Select-object name,samaccountname,userprincipalnamename sAMAccountName userPrincipalName                                               -----------------------------------Guest Guest                                              KRBTGT krbtgt                                           Mailuser2 Mailuser2 Mailuser3 Mailuser3 Mailuser4 Mailuser4 Mailus                                           Er5 Mailuser5 Mailuser6 Mailuser6                  Mailuser7 Mailuser7 Mailuser8               Mailuser8    

Set results

Get-aduser-filter *-properties * | where {$_. Userprincipalname-ne $null} | Select-object Name,samaccountname,userprincipalnamename SAMACCOUNTN                                                        Ame userPrincipalName----                                          --------------                                              -----------------                                               Administrator Administrator                                    [Email protected] Guest Guest [E                                                      Mail protected] Krbtgt         krbtgt [email protected]                                  Exchange Online-applicationaccount $331000-k0sah4ncdj2k    [Email protected]

PowerShell bulk Modifies a user's UPN suffix