The edX system keeps track of learners’ progress through a course – recording when the learner watches videos, responds to problems, and so on. If you are a member of a course team, some of that data is visible to you for debugging purposes. Under every problem is a Staff Debug Info button: selecting this button opens a window with information about the problem.
None of this information should be necessary for day-to-day usage of edX, but for the sake of clarity, some of these fields are documented here.
An internal unique identifier that corresponds to this problem.
If you are having trouble with a problem, and need assistance from the edX support team, including this value will make it easier for them to track down the issue you are having with the problem.