Supabase Auth Invalid MFA Code

The multi-factor authentication code provided is incorrect.

Resolving the 'Invalid MFA Code' Issue in Supabase Auth

Understanding Supabase Auth

Supabase Auth is a powerful authentication tool that provides developers with a seamless way to integrate user authentication into their applications. It supports various authentication methods, including email, password, OAuth, and multi-factor authentication (MFA). The primary purpose of Supabase Auth is to ensure secure access to applications by verifying user identities.

Identifying the Symptom

When using Supabase Auth, you might encounter an error message stating 'Invalid MFA Code.' This symptom indicates that the multi-factor authentication process has failed due to an incorrect code entry.

What You Observe

Users attempting to log in with MFA enabled may receive an error message after entering their MFA code. The message typically reads 'Invalid MFA Code,' preventing them from accessing the application.

Exploring the Issue

The 'Invalid MFA Code' error occurs when the code entered by the user does not match the expected value. This mismatch can happen for several reasons, such as entering an expired code, a typographical error, or a synchronization issue with the time-based one-time password (TOTP) generator.

Common Causes

  • Incorrect code entry by the user.
  • Expired MFA code due to time drift.
  • Synchronization issues with the TOTP generator.

Steps to Fix the Issue

To resolve the 'Invalid MFA Code' issue, follow these steps:

Step 1: Verify Code Entry

Ensure that the user enters the MFA code correctly. Advise them to double-check the code for any typographical errors. If the code is entered manually, suggest using copy-paste to minimize errors.

Step 2: Check Code Validity

Confirm that the MFA code has not expired. MFA codes are typically time-sensitive and expire after a short duration. Ask the user to generate a new code and try again.

Step 3: Synchronize Time

Ensure that the user's device time is synchronized with an accurate time source. Time drift can cause the TOTP generator to produce incorrect codes. Users can synchronize their device time with an internet time server.

Step 4: Reconfigure MFA

If the issue persists, consider reconfiguring the MFA setup for the user. This involves disabling and re-enabling MFA in the user's account settings. For detailed instructions, refer to the Supabase Auth documentation.

Additional Resources

For more information on troubleshooting MFA issues, visit the Supabase MFA Guide. If you continue to experience issues, consider reaching out to Supabase Support for further assistance.

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