#ログイン articles
3 articles
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Claude
Can't Log In to Claude AI | Steps to Fix Email Authentication and SSO Issues
Troubleshoot Claude.ai login failures by cause: missing magic link or verification code emails, Google/Apple SSO errors, mobile/desktop app-only failures, server outages, and confusion between Console and Claude.ai — all organized following Anthropic's official Help Center documentation.
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Claude
How to Sign Up for Claude with Your Google Account in 5 Minutes — Plus Login Troubleshooting
Step-by-step instructions for signing up for Claude with a Google account across three paths: Web, iOS, and Android. Covers the 2-click registration flow, best practices for separating personal Gmail from work Workspace accounts, and the four most common login failure causes (already registered with a different account / OAuth blocked by admin / age restriction / unsupported region).
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Claude
Log in to Claude with Apple ID | Steps for iPhone App and Web
A guide to logging in to Claude with Apple ID, covering both the web version at claude.ai and the iPhone app, based on official Anthropic information. Explains whether Sign in with Apple is supported, the authentication steps in the iOS app, and what to check when login fails.