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Sign in when you don't have your phone with you

Important: This help article applies to the Single Sign-on service, which is being replaced by Microsoft Multi-Factor Authentication (MFA). Note that backup codes are not a feature of Microsoft MFA.

  1. If you're using a device that you've used before, and you selected Don't ask for a code again on this device, you don't need your phone to sign in at all.
  2. Use one of your backup verification codes.
  3. If you can't access your backup codes, contact the IT Services Help Desk for a single-use code. Email helpdesk at warwick dot ac dot uk or telephone 024 7657 3737.
Tip: After you sign in, go to and copy your backup codes. Save these somewhere you can access without having to sign in – for example, a printed copy in your wallet.

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