Hi I want to set all the mailboxRegionalConfiguration for my new accounts. I set Set-MailboxRegionalConfiguration -Identity <Mailbox> -Language sv-SE -DateFormat "yyyy-MM-dd" -TimeFormat HH:mm -TimeZone "W. Europe Standard Time" But i can't figure out how to change the "DefaultFolderNameMatchingUserLanguage" Now some of my users have english names on the folders.

this is example for you Set-MailboxRegionalConfiguration -Identity Adam_Bokiniec -Language en-GB -DateFormat dd/MM/yyyy -TimeFormat HH:mm -TimeZone W. Europe Standard Time

Yes, but that does not set the language for the folders.

in above powershell command you forgot to put language name in " ". Have you tried this?

in above powershell command you forgot to put language name in " ". Have you tried this? The command works, it sets -language to sv-SE but i can't change the foldernames. the user can change it from the OWA themself, but i want to do it for them.