As admin, enable "Mobile services": Site administration ► Mobile app ► Mobile settings Create a Token in the mobile app service for one student in a course: Click on Site administration ► Plugins ► Web services ► Manage tokens Now create a lesson activity configured in a way that is not yet open (timeavailable), add a couple of pages to the lesson. Next, you can do a CURL REST call simulating a WS client with the user. You need to replace the wstoken, lessonid (lesson instance id) and the URL of your moodle instance curl 'http://localhost/m/stable_master/webservice/rest/server.php?moodlewsrestformat=json' --data 'lessonid=6&wsfunction=mod_lesson_get_lesson_access_information&wstoken=12a2a65aeea2a177055e233f9e303218&moodlewssettingfilter=true' | python -m "json.tool" Check that you receive a preventaccessreasons "lessonopen" informing you that the lesson is not yet available Check that all of the can* fields are false Check that the firstpageid match with your lesson first page id in the database (lesson_pages table) Check that last page seen is equal to 0 Check that attempts/retries is equal to 0 Now, as admin or teacher, remove the time restriction As student access the lesson, open at least the first page Execute the Web Service request again and check that lastpageseen has been updated Check that preventaccessreasons is now empty Now, generate a token for an editing teacher in the course where the lesson is Execute the WS using the teacher token and check that you see correctly canmanage set to true and that the capabilities are all set to true