That message means password sign-in is not available for that Microsoft account sign-in flow. Use another available sign-in method first, then recover the account if needed.
- On the sign-in screen, look for Other ways to sign in.
- Choose a non-password method such as a verification code sent to a recovery email address or phone number.
- If sign-in succeeds with a code, continue the Link to Windows setup.
- If no alternate method works, run the Sign-in helper. It checks the email address or phone number entered and tells what action is needed: Sign-in helper
- If the password is forgotten or no longer works, use Recover your account and reset it:
- Enter the email address, phone number, or Skype name used to sign in.
- Choose where to receive the security code.
- Enter the code.
- Set a new password.
- If the account is not recognized, verify the email domain and spelling, and try another alias or phone number on the account if one exists.
- If the issue is with a work or school account, contact the organization’s IT admin or use the work or school password reset option instead of Microsoft account recovery.
- If the account is temporarily blocked because of too many sign-in attempts, avoid repeated retries and use an alternate sign-in method when available.
If the app still fails after account sign-in works elsewhere, try signing in to the Microsoft account in a browser on the iPhone first, then return to the app and try again.