Identifier rejected
Check spelling and the selected sign-in method before assuming the password is lost.
Check whether the genuine service expects a username, email or phone number. A correct password may fail when paired with the wrong identifier. Inspect autofill for outdated account details.
Caps Lock, keyboard language and spaces introduced while copying can cause password errors. Check privately. Repeated guesses may trigger temporary restrictions.
An expired session does not mean the account has been lost. Check any unsaved work before signing in again at the genuine service. This information page does not accept passwords.
Check for lookalike spelling and unfamiliar subdomains.
Use the identifier associated with the account.
Compare the saved password entry and keyboard state.
Distinguish successful access, a verification request and an error before choosing the next action.
Identifying the symptom prevents unnecessary retries and inappropriate recovery.
Check spelling and the selected sign-in method before assuming the password is lost.
Follow instructions on the genuine service screen. Do not reply to a message with your code.
Identity may need to be confirmed again; unexplained changes should be treated as a security concern.

Avoid saving passwords or selecting persistent sign-in on a public computer. Sign out of the genuine service rather than merely closing its tab. Check for personal files left behind.
If suspicious activity follows use of an unfamiliar device, act from a trusted device. A missing code is different from unauthorised access; recovery and security pages address these separately.
Check the identifier, keyboard and outdated autofill. Stop guessing if the same failure continues.
Not always. Normal sign-in may be sufficient.
This is an instruction page. Verify the genuine service address before entering credentials.
Use recovery guidance if you forget the password or lose access to the registered contact method.