Claude is a popular AI assistant, but users often face login errors, quota limits, or message sending failures. This article gathers the most frequently asked questions and provides practical solutions to help you return to normal use quickly.
Login and Account Issues
Many users encounter "verification code not received" or "account locked" messages when logging into Claude. First, check your spam folder and confirm your phone number or email is correct. If you still don’t get the code after several attempts, try switching networks or waiting 30 minutes before retrying. Account locks are usually triggered by unusual login activity; you can submit identity verification through the official support channel to unlock it. Avoid using shared accounts or temporary email addresses to sign up, as they often lead to restricted access.
Message Sending and Rate Limits
The free version of Claude has an hourly message cap. Exceeding it will show a "too many requests" error. You’ll need to wait for the quota to reset, which typically takes one hour. If paid subscribers experience sending failures, first check your internet connection, then try refreshing the page or logging out and back in. Also, if a single message exceeds the context window (e.g., Claude 3.5 Sonnet supports 200K tokens), it will be truncated. In that case, send the message in parts.
Privacy and Security Tips
Some users worry about their conversation data being misused. Claude’s official policy states that user inputs are not used for model training unless you opt into a feedback program. Avoid entering sensitive personal information in conversations. To delete chat history, clear your conversations in the settings. If you receive an alert about a login from an unfamiliar location, change your password immediately and enable two-factor authentication. Regularly review the list of devices logged into your account and remove any unknown ones.
