There are no academic penalties associated with not finishing a course on edX. If you cannot complete a course, you have several options.
If you’ve purchased a program bundle, you may have the option to change course sessions or leave the current session. In these courses, in addition to unenrolling from the course, you have these options:
Note: If the refund eligibility period has passed (meaning that you will not receive a refund), the unenroll option is not available. For more information, see How do I choose a course session?