A password is rejected
Check capitalisation, accidental spaces and the account name. If the same detail still fails, choose recovery instead of guessing.
Returning access calls for the right destination, the correct account identifier and a private device session. Use this explanation to distinguish a typing problem, a recovery request and an unexpected security prompt.

Before entering a password, check the address and the purpose of the page. An informational sign-in page and an actual credential form are different things. Do not enter credentials into a message, an email reply or a form reached through an unexplained redirect.
A failed sign-in can result from a wrong identifier, keyboard layout or an outdated saved password. Correct these simple causes once before repeating the request. Repeated guesses can trigger restrictions and make it harder to understand the original problem.
Recovery should use the actual service’s stated process. If you no longer control the registered contact method, do not substitute another person’s details. Keep a record of the symptom and use the designated support route without disclosing credentials.
Recognising the specific symptom reduces unnecessary retries.
Check capitalisation, accidental spaces and the account name. If the same detail still fails, choose recovery instead of guessing.
A session can end independently of the password. Reopen the intended destination and check whether a fresh sign-in is required.
Read what the prompt is authorising. A request you did not initiate should be treated differently from a device you just added.

On a shared device, avoid saving credentials and close the session explicitly when finished. Closing a tab may leave a session active, so use a sign-out control when the actual service provides one.
If a device is lost, secure the associated email and contact method as well as the account. Change credentials from a trusted device and use available session controls rather than relying on the missing device being locked.
Return to a destination you have independently checked.
Confirm the account name and keyboard input without copying private information into a help message.
Follow the actual recovery instructions and keep codes private.
Note the error, time and device, then contact the appropriate support channel.
No. This page explains returning access and recovery checks.
No. After checking input, use the stated recovery route rather than repeated guesses.
Do not disclose a full password or a one-time code to someone claiming to help.
The page name, error wording, approximate time and device are useful. Omit passwords, codes and full account or payment details.