Merge pull request MicrosoftDocs#6919 from MicrosoftDocs/chrisda

Chrisda to Master

Author: chrisda

exchange/exchange-ps/exchange/New-Mailbox.md

@@ -1693,7 +1693,11 @@ Accept wildcard characters: False
 ### -MailboxRegion
 This parameter is available only in the cloud-based service.
 
-This parameter is reserved for internal Microsoft use.
+The MailboxRegion parameter specifies the geo location for the mailbox in multi-geo environments.
+
+To see the list of configured geo locations in Microsoft 365 Multi-Geo, run the following command: `Get-OrganizationConfig | Select -ExpandProperty AllowedMailboxRegions | Format-Table`. To view your central geo location, run the following command: `Get-OrganizationConfig | Select DefaultMailboxRegion`.
+
+ For more information, see [Administering Exchange Online mailboxes in a multi-geo environment](https://docs.microsoft.com/microsoft-365/enterprise/administering-exchange-online-multi-geo).
 
 ```yaml
 Type: String

exchange/exchange-ps/exchange/Set-ActiveSyncOrganizationSettings.md

@@ -101,6 +101,8 @@ Accept wildcard characters: False
 ```
 
 ### -AllowRMSSupportForUnenlightenedApps
+This parameter is available or functional only in the cloud-based service.
+
 The AllowRMSSupportForUnenlightenedApps parameter specifies whether to allow Rights Management Services (RMS) protected messages for ActiveSync clients that don't support RMS. Valid values are:
 
 - $true

exchange/exchange-ps/exchange/Set-Mailbox.md

@@ -3422,7 +3422,11 @@ Accept wildcard characters: False
 ### -MailboxRegion
 This parameter is available only in the cloud-based service.
 
-This parameter is reserved for internal Microsoft use.
+The MailboxRegion parameter specifies the geo location for the mailbox in multi-geo environments.
+
+To see the list of configured geo locations in Microsoft 365 Multi-Geo, run the following command: `Get-OrganizationConfig | Select -ExpandProperty AllowedMailboxRegions | Format-Table`. To view your central geo location, run the following command: `Get-OrganizationConfig | Select DefaultMailboxRegion`.
+
+ For more information, see [Administering Exchange Online mailboxes in a multi-geo environment](https://docs.microsoft.com/microsoft-365/enterprise/administering-exchange-online-multi-geo).
 
 ```yaml
 Type: String