DukeHub 2.0 is live!
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Take a look at these Help Guides to help you find your way.
While most classes at Duke are in-person, it is recommended that students consult the Instruction Modes guide to understand how online and hybrid offerings will display schedule.
Error messages will be displayed after you select the "Finish Enrolling" button when adding a class for the term and can be resolved following the instructions in the table below.
|Career Restriction||Enrollment is not allowed for the class as it is outside your career of study.||Select another course.|
|Closed Section||This course has reached maximum enrollment.||Choose 'Waitlist' if the option exists or search for another course.|
|Co-Requisite||You are attempting to add or drop a course without its corresponding corequisite.||Register or drop both classes at the same time.|
|Department or Instructor Approval||Enrollment for this course is controlled.||Contact the department or instructor for a permission number.|
|Duplicate Class Number||You are already enrolled in this class.||Verify you are using the correct class number for the term and resubmit the request.|
|Invalid Class Number||The system does not recognize the class number entered.||Verify you are using the correct class number for the term and resubmit the request.|
|Link Error||You must enroll in the attached lecture, lab or discussion that is linked to this course.||You must enroll in the attached lecture, lab or discussion that is linked to this course.|
|Maximum Term Limit Exceeded||Adding this class would exceed the maximum number of units allowed for this term.||Permission of Dean required.|
|Maximum Appointment Limit Exceeded||Adding the class would exceed the unit limit allowed for the appointment period.||Review your enrollment appointment limits.|
|Not Eligible to Enroll||You are not eligible to enroll for this term.||Contact your academic advisor.|
|Registration Hold||You have a hold on your record.||The hold on your record must be removed before this transaction can be processed. Review the hold in the notifications page.|
|Requisite Error||Requisites not met for class.||Click the class link in the shopping cart page and look under Enrollment Information to view any enrollment requirements. Select another class or appeal to instructor for permission number.|
|Repeat||Course previously taken and may be subject to institutional repeat policy.||You have now exceeded the repeatable limit for this class. Verify that this class will apply toward your course of study.|
|Time Conflict||This course has a time conflict with another course on your schedule.||A scheduling conflict exists with a currently enrolled class. Select another class.|