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Four Auth Failures That Hit Lovable Apps When Real Users Arrive

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Apps built on Lovable Cloud use Supabase Auth underneath, and several default settings suited for development can cause problems once a real user base arrives. Common failures include Google login redirecting to a preview URL instead of the production domain, confirmation emails stopping due to Supabase's built-in mailer rate limit, and missing Row Level Security policies exposing user data. None of these require rebuilding the app — they are configuration and database policy fixes that can be resolved without logging out existing users. Developers are advised to disable auto-confirm on sign-ups, switch to a custom email provider, and update the Site URL to the live production domain before launch.

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