In this Tutorial we are going over the process to manage password expiration policy in Office365 for those companies that do not synchronize account information with Office365.
If you are a small shop that does not have synchronization or Active Directory Federation Services in place, then it is most likely that you create your accounts directly in Office 365, and on that scenario the password expiration policy of Office365 can be defined to meet the company’s requirements.
The configuration is really simple, logged on the Office 365 as administrator, click on the icon located on the upper left corner, and click on Admin.
In the Office 365 admin center. Expand Service Settings and then click on Passwords, and on this new page we can configure the passwords to never expire (highlighted although not a security best practice), and also the numbers of days to expire the passwords, the administrator can also define how many days before the expiration to notify the end-user.