For testing this new webservice: Use this client: https://github.com/moodlehq/sample-ws-clients/blob/master/PHP-REST/client.php functionname core_course_import_course /// PARAMETERS $params = array( 'importfrom' => 2, // The id of the course we are importing from 'importto' => 3, // The id of the course we are importing to 'deletecontent' => 0, // Delete the content of the course we are importing to 'options' => array(array('name'=>'blocks', 'value'=>1), array('name'=>'activities', 'value'=>1), array('name'=>'filters', 'value'=>1)) // Backup options ); Change the importfrom and importto values to match your courses