Hi,

I added some extra fields to the Account settings, among which a date field modifiable by the administrator only.
I want this field to indicate a certain expiration date and I want that the Admin to be notified by email just after the expiration.

So basically I need to set up a rule that checks my special expiration date field for each registered user and accordingly sends a mail with the user data (so the admin can contact the user... or somewhat else).

I tried to set up a rule performed on cron update... but I can manage only site:current-user... The user account isn't a node.... so I really don't know how to procede to get what I'm looking for.

What is the right strategy to achieve this behaviour?