Registration Error Codes and Solutions

Find out what CNM registration error codes mean and how to fix them so you can register for classes successfully.

What to Do When You Encounter a Registration Error Code

If you see an error while registering for classes, here’s what it means and what you can do to fix it.

Error Code	What It Means	How to Fix It
Administrative staff are reviewing your registration records at this time	Only one person can access your registration records at a time.	Wait a little while and try again.
Class is Full; Waitlist is Open	The class is full.	Choose "Waitlist" instead of "Register" in the dropdown menu. Check your CNM email daily for updates.
Corequisite Required	A corequisite is a class you must take at the same time as another class.	Add the required corequisite and try again.
Department Approval Required	Some classes need department approval.	Contact the academic school that offers the course. Business, Hospitality & Technology Education Health, Wellness & Public Safety Liberal Arts Math, Science & Engineering Nursing & Patient Support Skilled Trades & Arts
Duplicate Course	You can only register for one section of a course per term.	If you’re repeating an intersession course and see this error, contact the Records Office.
Exceeding Credit Limit	You’re trying to register for more than 18 credit hours.	See CNM Advisement for approval. If you want to change from visitor to regular student, call (505) 224-3000.
Learning Communities	This class is part of a group of linked courses that must be taken together.	Submit all linked courses at the same time. Check the Learning Communities webpage for details.
Repeat Error – You must request an override to take this course a third time.	You’re trying to take a class for the third time.	CNM is piloting a new course repeat process starting Fall 2025. You do not need to complete a request to repeat most courses more than twice. Please reach out to CNM Advisement if you receive a course repeat registration error.
Section is Invalid	The CRN you entered is no longer active.	Call (505) 224-3000 to confirm that the CRN is no longer active.
Student Attribute Restriction	You’re trying to register for a class that doesn’t match your student type. For Example: You’re a General student, but the class is for CNM Online College students.	Find a different section of the same course.
Student Status Prevents Registration	Your student account isn’t active. Admissions applications stay active unless you skip three consecutive terms.	Submit an updated Admissions application for the term you want to take classes.
The registration period has ended for this class.	You can only register for a class up until the day before it starts.	Choose a class that starts later. If you’re trying to register on or after the start date, contact the instructor.
Time tickets prevent registration.	The system is unavailable every night from 10 p.m. to midnight. You’ll also see this error if you try to register before your assigned date and time in DegreeWorks.	Register after your time ticket opens and avoid the nightly maintenance window.
You do not meet the prerequisite(s) for this course.	A prerequisite is a class you must pass with a C or better before taking a higher-level course. The system doesn’t see that you meet this requirement.	Make sure you've completed the prerequisite or contact CNM Advisement for help.
You have holds which prevent registration.	There’s a hold on your account.	Resolve the hold and try again. Call (505) 224-3000 for help.