How to Resolve the “NIN Already in Use” Error During APC Membership Registration

The All Progressives Congress (APC), Nigeria’s ruling political party, has rolled out a nationwide electronic membership registration exercise to update its database and strengthen grassroots participation. This process, which began in early January 2026, requires applicants to provide their National Identification Number (NIN) for authentication, alongside other details like the Permanent Voter’s Card (PVC) number. However, some users encounter the frustrating “NIN already in use” error, which prevents them from completing registration.

This error typically indicates that the NIN has already been associated with an existing APC membership record. It could stem from prior registration (by you or inadvertently through party-led initiatives), technical glitches, or, in rare cases, unauthorized data usage. In this article, we’ll outline the common causes and provide a step-by-step guide to resolving the issue, based on official party guidelines and user-reported experiences. Resolving it promptly ensures you can participate in party activities, access benefits, and contribute to APC’s progressive agenda.

Understanding the “NIN Already in Use” Error

The APC’s e-registration system integrates with the National Identity Management Commission (NIMC) database to verify NINs, ensuring unique and authentic memberships. When the system detects that a NIN is linked to an active or previous record, it flags the error to prevent duplicates. Possible reasons include:

• Prior Registration: You may have registered during earlier drives forgotten your membership details.
• Party-Led Initiatives: Reports suggest that APC sometimes collects NINs during empowerment programs or events and registers participants en masse, potentially without explicit consent.
• System Errors: Temporary glitches, such as network issues or unlinked NIN updates, can trigger false positives.
• Data Mismatch or Fraud: If your NIN details don’t match NIMC records or if there’s suspected unauthorized use, the error may appear.

Step-by-Step Guide to Fixing the Error

Follow these steps systematically. You’ll need your NIN, PVC (if available), a stable internet connection, and access to your registered phone number or email for verification.

Step 1: Verify Your NIN Status with NIMC

Before troubleshooting APC-specific issues, ensure your NIN is active and correctly linked.

• Dial *346# on your registered mobile number to check NIN status (select option 1 for NIN retrieval or 2 for verification).
• If inactive or mismatched, visit a NIMC enrollment center to update details. Bring identification documents like your birth certificate or driver’s license.
• Tip: If you’ve recently modified your NIN (e.g., name correction), wait 24-48 hours for synchronization with external systems like APC’s portal.

This step rules out NIMC-side problems, which can mimic the APC error.

Step 2: Check for Existing Membership and Revalidate

The error often means you’re already in the system. Use the revalidation feature to retrieve and update your profile.

• Visit the official APC membership portal at https://apcregistration.com.
• Click on “Member Revalidation” or “Member Login.”
• Enter your NIN and other prompted details (e.g., phone number or email).
• If successful, you’ll receive an OTP (One-Time Password) via SMS or email for verification.
• Log in to view your membership slip, update information, and print a digital card.
• If the portal shows you’re registered, note your membership ID for future reference.

Step 3: Attempt New Registration if Not Already a Member

If revalidation confirms no existing record but the error persists:

• Go to https://registration.apc.com.ng or https://apcregistration.com and select “Be a Member.”
• Fill in the form with your NIN, full name, date of birth, gender, contact details, address, and PVC number (if applicable).
• Upload a passport photo if required.
• Submit and await confirmation. If the error reappears, clear your browser cache, try a different device, or use incognito mode to rule out technical hiccups.

Step 4: Contact APC Support or Local Officials

If online methods fail, seek assistance from party structures:

• Reach out to your ward chairman or local government secretariat. Provide your NIN and explain the issue—they can manually verify or escalate to state coordinators.

The “NIN already in use” error is a common hurdle in APC’s e-registration but is often resolvable through revalidation or local support. By following these steps, you can secure your membership and engage actively in Nigeria’s political landscape. If issues persist, persistent follow-up with APC officials is key. For the latest updates, visit the official APC website or consult your local ward. Joining APC not only amplifies your voice but contributes to national development—register today!