Q. What are reference codes used for?
A. The reference code allows administrators to place a code to identify versions of a course. It doesn't appear on the learner side, but allows Admins to decipher between courses with similar titles and organize your courses. For example, if you have several courses on sales training, you can insert a reference code (ST1 or Sales1) to keep track of when you would like to assign courses to a team or user.
For more on Course settings, check out the "How To: Manage General Course Settings" course in Litmos Dojo.