Merge branch 'master' into patch-205

Author: kenwith

exchange/exchange-ps/exchange/Get-UnifiedGroup.md

@@ -149,6 +149,8 @@ The Identity parameter specifies the Office 365 Group that you want to view. You
 
 - GUID
 
+**Note**: You can use the DisplayName value to identify the Office 365 group, but the results aren't guaranteed to be unique. If you must return a singular and unique result, use a unique identifier for the Office 365 Group.
+
 ```yaml
 Type: UnifiedGroupIdParameter
 Parameter Sets: Identity

exchange/exchange-ps/exchange/Set-RemoteMailbox.md

@@ -1406,9 +1406,11 @@ The Type parameter specifies the type for the mailbox in the service. Valid valu
 
 Notes on the value Shared:
 
-- Shared is available only in Exchange 2013 CU21 or later and Exchange 2016 CU10 or later. To use this value, you also need to run setup.exe /PrepareAD. For more information, see [KB4133605](https://support.microsoft.com/help/4133605/cmdlets-to-create-modify-remote-shared-mailbox-in-on-premises-exchange).
+- Shared is available only in Exchange 2013 CU21 or later, Exchange 2016 CU10 or later, and Exchange 2019. In Exchange 2013 and Exchange 2016, you also need to run setup.exe /PrepareAD. For more information, see [KB4133605](https://support.microsoft.com/help/4133605/).
 
-- You can only use Shared on a mailbox that was originally created in Exchange Online. If the mailbox was originally created in on-premises Exchange and then migrated to Exchange Online, take the action described in Step 3 in the Resolution section in [KB2710029](https://support.microsoft.com/help/2710029/shared-mailboxes-are-unexpectedly-converted-to-user-mailboxes-after-di).
+- If you tried to convert a migrated remote mailbox to a shared remote mailbox, you would receive the following error: `remoteMailbox.RemoteRecipientType must include ProvisionMailbox`. This issue was fixed in Exchange 2016 CU14 and Exchange 2019 CU3, but not in Exchange 2013. For more information, see [KB4515271](https://support.microsoft.com/help/4515271/).
+
+- If directory synchronization unexpectedly converts shared mailboxes in Exchange Online back into user mailboxes, or if you continue to receive the `remoteMailbox.RemoteRecipientType must include ProvisionMailbox` error when you use the value Shared, take the action described in Step 3 in the Resolution section in [KB2710029](https://support.microsoft.com/help/2710029/).
 
 ```yaml
 Type: ConvertibleRemoteMailboxSubType