Allow to sync authentication data (Alternate Email, Mobile Phone, etc) with Azure AD Connect.
The only seemingly supportable way that is currently documented to synchronize the authentication data properties in Azure AD is to user PowerShell.
This is not really a great Enterprise method to manage and keep user data up to date. For multiple reasons in various cases we prefer to set some of these properties for our user population. It would be a much better scenario to be able to use the already existing on-prem to Azure AD sync tool that is Azure AD Connect.
Elie Barbour commented
Hello any news on this ? we need to sync user email which is different domain than upn