Office 365

Office 365 – Import Regional Configuration

During an Office 365 migration, it can be useful to set the regional configuration before the user logon the first time.

Specify the regional setting prevents the user to register the language and time zone again. Moreover, when you want to import PST files into the new office 365 Mailbox, default folders must have the same name. Otherwise you will get two folders for each default folder, like inbox, Sent, Drafts…

Regional configuration

Regional configuration

This modification can be done using the Office 365 Exchange cmdlet or we can use a powershell script. Let’s see how to do that.

Import Regional Configuration

In Office 365, to set the regional configuration, we need to use the Set-MailboxRegionalConfiguration cmdlet. Parameters are:

  • Identity, email addresse of the mailbox.
  • Language, language used. Need to be formated as fr-ch, en-us, fr-fr, etc.
  • DateFormat,  date format like dd.MM.yyyy or MM.dd.yyyy.
  • TimeFormat,  Time format like HH:mm
  • TimeZone, the timezone of the mailbox. Like W. Europe Standard Time


Powershell Script

Of course, it is possible to run a script in order to import the configuration into several mailboxes.

$Users = Import-Csv $FileCSV
Foreach ($User in $Users){
   $Identity = $User.Identity
   $Language = $User.Language
   $DateFormat = $User.DateFormat
   $TimeFormat = $User.TimeFormat
   $TimeZone = $User.TimeZone
   Write-Host  $Identity  $Language $DateFormat $TimeFormat $TimeZone
   if ($TimeZone -like "")
		Set-MailboxRegionalConfiguration -Identity $Identity -Language $Language -DateFormat $DateFormat -TimeFormat $TimeFormat -LocalizeDefaultFolderName:$true
		Set-MailboxRegionalConfiguration -Identity $Identity -Language $Language -DateFormat $DateFormat -TimeFormat $TimeFormat -TimeZone $TimeZone -LocalizeDefaultFolderName:$true

The CSV file must be like:

CSV File Regional Settings

CSV File Regional Settings


You can get more information about the cmdlet Get-MailboxRegionalConfiguration here.


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