Set O365 Password to never expire for just one user

 

Recently I needed to do this for our PRTG alerting account which was failing to send notifications as the O365 password had expired.  I did this from Powershell within Windows 10 as follows: Launch powershell as Administrator then run

Install-Module MsOnline

Then run

Connect-MsOlService

at this point an O365 authentication box pops up - enter your credentials. Once connected run:

Set-MsolUser -UserPrincipalName user@contoso.com -PasswordNeverExpires $true

Some of these commands have since been deprecated. For an explanation look at this post.