Adding Alias to Groups

Set-ExecutionPolicy RemoteSigned

y

$UserCredential = Get-Credential

$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $UserCredential -Authentication Basic -AllowRedirection

Import-PSSession $Session                                                                                                 //shows command

Get-UnifiedGroup "samplesample@breeneng.com" 

Get-UnifiedGroup "electrical@breeneng.com" | FL                                                                 //file list

Get-UnifiedGroup "structural@breeneng.com" | FL emailaddres*                                         //to check primary and aliases

Get-UnifiedGroup "samplesample@breeneng.com" | Set-UnifiedGroup -PrimarySmtpAddress samplesample@bei-servicesinc.com

 Get-UnifiedGroup "samplesample@breeneng.com" | Set-UnifiedGroup -EmailAddresses @{add="samplesample@bei-servicesinc.com"}                    //add alias

References:

https://technet.microsoft.com/library/mt238274(v=exchg.160).aspx

https://support.office.com/en-us/article/Managing-Office-365-and-Exchange-Online-with-Windows-PowerShell-06a743bb-ceb6-49a9-a61d-db4ffdf54fa6?ui=en-US&rs=en-US&ad=US&fromAR=1