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Microsoft Entra device code verification code is invalid

AADSTS70018: BadVerificationCode

Microsoft Entra rejected the device code flow because the user entered the wrong verification code during device authorization.

AADSTS70018authentication

Observed message

AADSTS70018: BadVerificationCode

Why it happens

  • The user typed the wrong device verification code.
  • A stale or mismatched verification code was entered.
  • The device flow being authorized does not match the code being submitted.

How to fix it

  1. Start the device code sign-in flow again if needed.
  2. Enter the exact verification code shown by the app.
  3. Make sure the browser session is completing the same device flow request.

Official reference

Microsoft Learn: Microsoft Entra authentication and authorization error codes

Related errors

AADSTS700016Microsoft Entra application identifier was not foundAADSTS70001Microsoft Entra application is disabledAADSTS70003Microsoft Entra application used an unsupported grant typeAADSTS70007Microsoft Entra application used an unsupported response mode

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AADSTS70018 BadVerificationCode: causes and fixes | Error Atlas