Before you start with the solution, have a look at the list of all the possible reasons that you may experience due to Yahoos verification codes. So, that you can solve it easily:
1. You are not receiving the verification code while resetting your password by text or email.
2. You are not receiving the two-verification code.
3. The verification link or code you have received is no longer valid or has expired.
4. You can’t receive the verification code due to lost recovery details.