[Delivered] Creating new email within automated series has missing subject and preheader

The place where I always add subject line and preheader for emails is not there when I create the automated series of emails.  How do I add that?  When I send a test, it comes through as "No Subject" and "You don't want to miss this" for the preheader.  This is not what I want to say as a subject and preheader.