Set up an account with Enterprise Login
ArcGIS Pro and its most-used extensions (like Spatial Analyst) are activated by default, and ArcGIS Online will be activated with most permissions and a basic level of credits for online analysis procedures. After setting up your ArcGIS Online account, email the administrators at it@nicholas.duke.edu if you have questions regarding account permissions and credits.There are two basic types of accounts for individuals:
Subscription Account
Free Public Acconts
The Duke campus account is allotted a fixed number of "credits" (like a debit account) per year, which are consumed during the course of the year by using certain functions and storing data ArcGIS Online.
In our academic environment, Geocoding consumes the most credits, followed by Feature Services Storage. Tile Storage, various Network Analysis tools, and the other Analysis tools can also potentially consume many credits if not used judiciously.