Applies to: Exchange Server 2013

This topic no longer applies to the cloud-based service. It applies only to on-premises Exchange 2013. To see the current version of the topic that applies to the cloud-based service, change the (v=exchg.150) value in the URL to (v=exchg.160).

Use the Update-PublicFolderMailbox cmdlet to update the hierarchy for public folders.

For information about the parameter sets in the Syntax section below, see Syntax.

Update-PublicFolderMailbox -Identity <MailboxIdParameter> <COMMON PARAMETERS>
Update-PublicFolderMailbox -Identity <MailboxIdParameter> [-FullSync <SwitchParameter>] [-InvokeSynchronizer <SwitchParameter>] [-ReconcileFolders <SwitchParameter>] [-SuppressStatus <SwitchParameter>] <COMMON PARAMETERS>
COMMON PARAMETERS: [-Confirm [<SwitchParameter>]] [-DomainController <Fqdn>] [-WhatIf [<SwitchParameter>]]

This example updates the public folder hierarchy on the public folder mailbox PF_marketing and suppresses the command's output.

Update-PublicFolderMailbox -Identity PF_marketing -SuppressStatus

This example updates all public folder mailboxes and suppresses the command's output.

Get-Mailbox -PublicFolder | Update-PublicFolderMailbox -SuppressStatus

This cmdlet only needs to be used if you want to manually invoke the hierarchy synchronizer and the mailbox assistant. Both these are invoked at least once every 24 hours for each public folder mailbox in the organization. The hierarchy synchronizer is invoked every 15 minutes if any users are logged on to a secondary mailbox through Microsoft Outlook or a Microsoft Exchange Web Services client.

You need to be assigned permissions before you can run this cmdlet. Although all parameters for this cmdlet are listed in this topic, you may not have access to some parameters if they're not included in the permissions assigned to you. To see what permissions you need, see the "Public folders" entry in the Sharing and collaboration permissions topic.


Parameter Required Type Description




The Identity parameter specifies the identity of the public folder mailbox. This parameter accepts the following values:

  • GUID

  • Distinguished name (DN)

  • Domain\Account

  • User principal name (UPN)

  • Legacy Exchange DN

  • SMTP address

  • Alias




The Confirm switch can be used to suppress the confirmation prompt that appears by default when this cmdlet is run. To suppress the confirmation prompt, use the syntax -Confirm:$False. You must include a colon ( : ) in the syntax.




This parameter is available only in on-premises Exchange 2013.

The DomainController parameter specifies the fully qualified domain name (FQDN) of the domain controller that writes this configuration change to Active Directory.




The FullSync switch specifies that you want to perform a full synchronization of the public folder mailbox.




The InvokeSynchronizer switch can only be used on secondary hierarchy public folder mailboxes and triggers hierarchy synchronization from the primary public folder mailbox to the specified secondary public folder mailbox.

This switch should only be used for troubleshooting purposes.




The ReconcileFolders switch specifies whether to look closely for differences in the folder hierarchy between the primary public folder mailbox and the secondary public folder mailbox. Folders that exist in the primary public folder mailbox and not in the secondary will be recreated. Folders that exist in the secondary public folder mailbox and not in the primary will be deleted.

This switch should only be used for repair or troubleshooting purposes to look for differences in the public folder hierarchy that aren't detected by a regular synchronization. These undetected differences may occur in database failover or disaster recovery scenarios. You must use this switch with the InvokeSynchronizer switch.




The SuppressStatus switch specifies that the output of this cmdlet is suppressed and that the command will run asynchronously in the background from the Exchange Management Shell. If you don't use this switch in the command, the output will display status messages every 3 seconds for up to one minute. Until the minute passes, you can't use that instance of the Shell.




The WhatIf switch instructs the command to simulate the actions that it would take on the object. By using the WhatIf switch, you can view what changes would occur without having to apply any of those changes. You don't have to specify a value with the WhatIf switch.

To see the input types that this cmdlet accepts, see Cmdlet Input and Output Types. If the Input Type field for a cmdlet is blank, the cmdlet doesn’t accept input data.

To see the return types, which are also known as output types, that this cmdlet accepts, see Cmdlet Input and Output Types. If the Output Type field is blank, the cmdlet doesn’t return data.