Identifier not recognised
Check the requested format and the spelling of your saved details. Avoid registering again simply because autofill chose the wrong identity.
Returning to an account starts with the right identifier and a trusted route. A wrong password, expired session and verification request need different responses; this guide helps you separate them.

Read the form’s identifier label before using a saved entry. Email, phone number and username are not automatically interchangeable. An autofill suggestion may belong to another account or use old details.
A session can end without the password changing. If a service asks you to sign in again, first confirm the address and the current request. An expired session is different from a message saying the supplied credentials are incorrect.
When details are forgotten, use the legitimate service’s recovery route rather than guessing repeatedly. Keep the recovery contact method secure and read the result of each step. A changed password does not by itself explain every unexpected account event.
Use the message on screen to decide which information to check next.
Check the requested format and the spelling of your saved details. Avoid registering again simply because autofill chose the wrong identity.
Look for typing errors, keyboard layout and unwanted spaces. If uncertainty remains, use recovery instead of repeated guesses.
Check that the request follows your own login attempt. An unsolicited request should not be approved.

Start from a known service address on a device you trust. Request recovery once and read the message that matches that action. A link in an unexpected message should not become your starting point.
After recovery, review available session or security settings in the actual service. On a shared device, avoid saving credentials and finish the session when done. Secure the associated email account if you suspect someone else has accessed it.
Check the address and avoid unsolicited login links.
Compare the form label with the details you are supplying.
Follow the service’s recovery instructions using your own contact method.
Keep the non-sensitive error wording and stop repeating an unclear action.
It explains login and recovery situations. It does not collect credentials or open an authenticated account session.
They may be outdated, belong to another account or use the wrong identifier. Check the form and stored entry before assuming the password changed.
No. Keep passwords, one-time codes and recovery links private, including when somebody offers assistance.
The step reached, displayed message, time and browser are useful. Do not send the password or full personal account data.