Admins for ArcGIS Online Orgs in schools and clubs should change all users from "Creator" to "GIS Professional Advanced." This is an easy process if you are comfortable with Python scripting. If you are not comfortable doing scripting, it is a little more tedious process but still easy to do.
First, see this blog entry from Geri Miller (my colleague helping higher ed folks).
Then, see the attached PDF showing the process done manually in a school Org with 880 members.
This is especially important for sites using a "single sign-on" process. ALL NEW usernames in a school Org should be set as "GIS Professional Advanced." (See "ArcGISOnlineOrgsForK12Schools".) Why make this change? The ArcGIS School Bundle includes ArcGIS Pro, and the "GIS Professional Advanced" automatically includes permission to have a license for Pro. The ArcGIS School Bundle has been redefined as having only GIS Professional Advanced user types, so Admins may see that there are, for instance, "-14 Creators in place, 0 available," meaning 14 users with Creator user type need to be converted to GIS Professional Advanced. Completing this will be critical for the next renewal and redefinition in July 2020.
