Update your Moodle site and check that the new option is displayed as a new option, but leave it blank Enable "Mobile services": Plugins ► Web Services ► Mobile Create a WS Token for one user on the site: Click on Site administration ► Plugins ► Web services ► Manage tokens Next, you can do a CURL REST call simulating a WS client with the user. You need to replace the wstoken, and the URL of your moodle instance curl 'http://[YOUR_MOODLE_URL]/webservice/rest/server.php?moodlewsrestformat=json' --data 'wsfunction=tool_mobile_get_config&wstoken= [YOUR_WS_TOKEN] &section=mobileapp' | python -m "json.tool" Check that in the WS response the tool_mobile_apppolicy value is empty Go to Site administration ►Mobile app ►Mobile settings Add a valid URL in the App policy field Execute again the same curl Request Check that in the WS response, in the tool_mobile_apppolicy value field, you see the URL you entered