If users, particularly staff and externals are experiencing problems with using Turnitin and GradeMark then first check the System Requirements and Settings provided by Turnitin which should ensure that all features work, especially relating to GradeMark.
Please inform second markers and externals of the above settings
If problems are still encountered, contact the University’s IT Service Desk
Further information on Turnitin / GradeMark and its use is available in the following Moodle resource: