Send email to user notifying them of new permissions
A customer asked about this and it seems like a reasonable ask. When we create a new user, we can send them their username\password, but often times this is before they have any permissions to do anything (At least in classic portal).
It would be nice if the user creation and adding permissions journey included sending updates to permissions. This could also be considered a security best practice. Preferably though, I think it would be best to have a "Notify user via email" check box when you modify permissions would be a nice feature.