Go to Turnitin.com and log into your student account.
The is a unique, numeric identifier (usually 8 digits long) generated by Turnitin when an instructor creates a new class. This ID acts like a digital room number, ensuring that when you join a class, you are entering the correct workspace for your specific subject and teacher. What is an Enrollment Key? class id and enrollment key for turnitin
It is important to note that Because of privacy and security protocols, only your institution has access to your specific class credentials. To find yours, check the following sources: Go to Turnitin
If the ID is correct but you still can't join, the instructor may have set an "End Date" for the class that has already passed. You will need to contact them to reopen it. What is an Enrollment Key
Check Canvas, Blackboard, Moodle, or Brightspace. Instructors often post these details in a "Welcome" announcement or a dedicated "Turnitin Info" folder.
Understanding Class IDs and Enrollment Keys for Turnitin: A Student’s Guide