How many characters can be used within a “Description” of a Grade Set? Posted on June 14, 2016June 14, 2016 by Sarah Hart The maximum number of characters that can be used in a description of a Grade Set is 100. How useful was this article? Click on a star to rate it! Submit Rating Average rating / 5. Vote count: No votes so far! Be the first to rate this post. Posted in SIMS.net and tagged Assessment, characters, grade, gradeset, how many, limit, maximum, set.