I had a need to set all members of a group so that their Office 365 (aka Microsoft Online) passwords never expire.  Didn’t take too long but I though it was worth sharing.  I also added output to show the setting was changed.  This could certainly be prettier but it is what it is.

Pre-Reqs

• This requires you to have the Office 365 Powershell cmdlets installed, which also required the Online Services Sign-in Agent to work. See this article for instructions.
• You need admin credentials to your Office 365 account.
• The script references the ObjectID of the Office 365 Group whose members you wish to change.  To get this you need to connect to Office 365 and use the Get-MsolGroup command. Below is a code snippet showing how.

import-module MSOnline
Connect-MsolService
Get-MsolGroup

Output will look something like below.

Script

The below would need to be saved as a .ps1 file.  The Object ID (shown in red #’s below) would need to be changed to match that of the desired group

import-module MSOnline
Connect-MsolService
### Get All the Members of the Group
$agents=Get-MsolGroupMember -GroupObjectId  ########-####-####-####-############
### Set PasswordNeverExpires to true for all members of the group.
Foreach ($agent in $agents ) {
Set-MsolUser -ObjectID $agent.ObjectID -PasswordNeverExpires $true
$postChangeAgent = Get-MsolUser -ObjectID $agent.ObjectID
Write-Host “User: ” $postChangeAgent.UserPrincipalName “PasswordNeverExpires:” $postChangeAgent.PasswordNeverExpires
}

Note: The line beginning with “Write Host” wraps. The end of that line in your script is the $postChangeAgent.PasswordNeverExpires

Cudos and References

Thanks to JoshT_MSFT @ the Office365 Technical Blog for the following article which pointed me in the correct direction.

http://community.office365.com/en-us/b/office_365_technical_blog/archive/2011/11/01/how-to-disable-password-policy-settings-in-bpos-and-office-365-with-powershell-grid-user-post.aspx