Ensure that Outcomes are enabled in advanced features Create some Outcomes at site level using any one of the existing scales Create a new assignment activity, configure it to use outcomes and to use and advanced grading method like rubrics, force it to use a numeric grade and a grade to pass Enrol a user as student in the course and another user as teacher As admin, enable "Mobile services": Plugins ► Web Services ► Mobile Create a Token for the student and teacher user: Click on Site administration ► Plugins ► Web services ► Manage tokens Next, you can do a CURL REST call simulating a WS client with the student user. You need to replace the wstoken, cmid (with the activity course module id) and the URL of your moodle instance curl 'http://localhost/m/stable_master/webservice/rest/server.php?moodlewsrestformat=json' --data 'cmid=81&wsfunction=core_course_get_course_module&wstoken=ffbe3a3002f235bf9d01fd9369e10b66' | python -m "json.tool" Confirm that you receive the basic module information 11 fields, you cannot see information like the grades settings and outcomes As a teacher run the same curl command replacing the token Confirm that you can see all the module information, including grade, gradepass, gradecat, outcomes and advanced grading methods Ensure that the information match the one in the web interface Now, update the assign and change the grade to use a scale (any). Run as teacher the curl command again, the grade should be now a negative value with the scale id. You should see a new field "scale" with the selected scalue values (comma separated)