Seeing an error message during JAMB registration can be confusing and stressful. Many candidates panic when strange messages appear on the screen. The truth is simple: most JAMB error messages are warnings, not rejection. They only mean something needs to be fixed.
This guide explains the most common JAMB registration error messages, what they really mean, and what you should do—calmly and correctly.
“Invalid NIN” Error Message
What it really means
JAMB cannot verify the NIN you entered.
Why this happens
- You typed the wrong NIN digits
- Your NIN is not active on the NIMC database
- The phone number used is not linked to your NIN
What to do
- Recheck your NIN slip carefully
- Use the phone number linked to your NIN
- Visit a NIMC office if the issue continues
“NIN Not Found” Error Message
What it really means
JAMB cannot locate your NIN in the national database yet.
Why this happens
- Your NIN was registered recently
- There is a delay between NIMC and JAMB systems
- Incorrect NIN was submitted
What to do
- Wait a few hours and try again
- Confirm your NIN status at NIMC
- Retry at an accredited CBT centre
“Profile Code Already Used” Error Message
What it really means
Your JAMB profile code has already been used.
Why this happens
- You already completed registration
- Someone else used your profile code
What to do
- Check if you already have a JAMB registration slip
- Visit a CBT centre to confirm your registration status
“Biometric Capture Failed” Error Message
What it really means
JAMB could not successfully capture your fingerprint.
Why this happens
- Worn or damaged fingerprints
- Faulty biometric scanner
- Poor network
- Very dry, wet, or injured fingers
What to do
- Clean and relax your fingers
- Try another finger
- Use a different CBT centre
- Update biometrics at NIMC if needed
“Duplicate Registration” Error Message
What it really means
JAMB detected more than one registration attempt using your details.
Why this happens
- You tried to register twice
- Multiple profile codes were used
What to do
- Stop further attempts
- Visit a JAMB office or accredited CBT centre immediately
“O-Level Result Not Uploaded” Error Message
What it really means
Your WAEC, NECO, or NABTEB result is missing on the JAMB portal.
Why this happens
- You registered with awaiting result
- You forgot to upload your O-Level result
What to do
- Go to an accredited CBT centre
- Upload your O-Level result
- Confirm the update on JAMB CAPS
“Subject Combination Error” Message
What it really means
Your UTME subjects do not match your chosen course.
Why this happens
- Wrong subject selection
- Course requirements were ignored
What to do
- Apply for change of course and institution
- Choose a course that matches your subjects
“Date of Birth Mismatch” Error Message
What it really means
Your JAMB date of birth does not match your NIN record.
Why this happens
- Incorrect NIN data
- Typing error during registration
What to do
- Correct your date of birth through JAMB correction of data
- Fix your NIN first if the error is from NIMC
“Registration Incomplete” Error Message
What it really means
Your registration did not finish successfully.
Why this happens
- Network interruption
- Biometric failure
- Payment issue
What to do
- Return to the CBT centre
- Complete the missing steps
- Reprint your registration slip after confirmation
“CAPS Not Available” Error Message
What it really means
The JAMB CAPS portal is temporarily down.
Why this happens
- System maintenance
- Heavy traffic
What to do
- Wait and try again later
- Avoid peak hours
“Invalid Subject” Error Message
What it really means
One or more selected subjects are not accepted for your course.
What to do
- Confirm the approved subject combination
- Change your course if necessary
How to Avoid JAMB Registration Errors
- Register early
- Use only accredited CBT centres
- Check all details before leaving the centre
- Upload O-Level results early
- Monitor JAMB CAPS regularly
- Avoid multiple registration attempts
Quick Answers Candidates Ask
Are JAMB registration errors common?
Yes. Many candidates experience at least one error.
Can these errors be fixed?
Most of them can, especially if handled early.
Does an error mean I’m disqualified?
No. It simply means something needs correction.
Final Word
JAMB registration error messages are not the end of your admission journey. Most are simple data or system issues that can be fixed if you stay calm and act early. Ignoring them is what causes serious problems.
For clear, honest, and updated guidance on JAMB Registration 2026, error solutions, CAPS issues, and admission help, keep following universities.ng.
