Implement a feature that allows password expiry notifications from Azure Active Directory
Enable functionality where admins can turn on "Your password is about to expire" email notifications for Azure Active Directory users. Add configuration items to this so it can be configured to send an email to users at 5 different stages (eg. 14 days out, 7 days, 3 days, 2 days, 1 day) etc. It's 2017 already.
We understand the gap, and are actively reviewing the scenario around password expiry notifications