Lovable
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Email Verification Flow Broken in Lovable App
Your Lovable app's email verification flow is broken. Users sign up but can't verify their email because the verification link doesn't work, leads to an error page, has already expired, or the verification email never arrives.
Email verification is essential for preventing fake accounts and ensuring users own their email address. When it's broken, legitimate users are locked out of your app after signing up, creating a terrible first impression.
The issue might be specific to certain email providers, or it might affect all users. Some users receive the email but the link fails; others never receive the email at all.
Error Messages You Might See
Email link is invalid or has expired
Error: Invalid token
Auth callback error: invalid_grant
Redirect URL mismatch
Common Causes
- Wrong redirect URL — The verification link points to localhost or the wrong domain
- Supabase email template misconfigured — The confirmation URL template in Supabase uses wrong variables or format
- Token expired — Email verification tokens expire before users click the link (default may be too short)
- Email caught by spam filter — Verification emails are caught by spam filters, especially for corporate email addresses
- Missing redirect handling — The app doesn't handle the redirect after Supabase verifies the email
How to Fix It
- Check Supabase email templates — Go to Supabase dashboard → Authentication → Email Templates and verify the confirmation URL uses {{ .ConfirmationURL }}
- Verify redirect URL configuration — In Supabase dashboard → Authentication → URL Configuration, make sure the Site URL and Redirect URLs include your production domain
- Extend token expiry — Increase the email OTP expiry in Supabase Auth settings if users complain about expired links
- Handle the auth callback — Ensure your app has a route that handles the auth callback and exchanges the token for a session
- Test the full flow — Sign up with a new email and follow the complete verification path to find exactly where it breaks
Real developers can help you.
Matthew Butler
Systems Development Engineer @ Amazon Web Services
Jaime Orts-Caroff
I'm a Senior Android developer, open to work in various fields
Milan Surelia
Milan Surelia is a Mobile App Developer with 5+ years of experience crafting scalable, cross-platform apps at 7Span and Meticha. At 7Span, he engineers feature-rich Flutter apps with smooth performance and modern UI. As the Co-Founder of Meticha, he builds open-source tools and developer-focused products that solve real-world problems.
Expertise:
💡 Developing cross-platform apps using Flutter, Dart, and Jetpack Compose for Android, iOS, and Web.
🖋️ Sharing insights through technical writing, blogging, and open-source contributions.
🤝 Collaborating closely with designers, PMs, and developers to build seamless mobile experiences.
Notable Achievements:
🎯 Revamped the Vepaar app into Vepaar Store & CRM with a 2x performance boost and smoother UX.
🚀 Launched Compose101 — a Jetpack Compose starter kit to speed up Android development.
🌟 Open source contributions on Github & StackOverflow for Flutter & Dart
🎖️ Worked on improving app performance and user experience with smart solutions.
Milan is always happy to connect, work on new ideas, and explore the latest in technology.
Richard McSorley
Full-Stack Software Engineer with 8+ years building high-performance applications for enterprise clients. Shipped production systems at Walmart (4,000+ stores), Cigna (20M+ users), and Arkansas Blue Cross. 5 patents in retail/supply chain tech. Currently focused on AI integrations, automation tools, and TypeScript-first architectures.
Dor Yaloz
SW engineer with 6+ years of experience,
I worked with React/Node/Python
did projects with React+Capacitor.js for ios
Supabase expert
Prakash Prajapati
I’m a Senior Python Developer specializing in building secure, scalable, and highly available systems. I work primarily with Python, Django, FastAPI, Docker, PostgreSQL, and modern AI tooling such as PydanticAI, focusing on clean architecture, strong design principles, and reliable DevOps practices. I enjoy solving complex engineering problems and designing systems that are maintainable, resilient, and built to scale.
prajwalfullstack
Hi Im a full stack developer, a vibe coded MVP to Market ready product, I'm here to help
legrab
I'll fill this later
Alvin Voo
I’ve watched the tech landscape evolve over the last decade—from the structured days of Java Server Pages to the current "wild west" of Agentic-driven development. While AI can "vibe" a frontend into existence, I specialize in the architecture that keeps it from collapsing.
My expertise lies in the critical backend infrastructure: the parts that must be fast, secure, and scalable. I thrive on high-pressure environments, such as when I had only three weeks to architect and launch an Ethereum redemption system with minimal prior crypto knowledge, turning it into a major revenue stream.
What I bring to your project:
Forensic Debugging: I don't just "patch" bugs; I use tools like Datadog and Explain Analyzers to map out bottlenecks and resolve root causes—like significantly reducing memory usage by optimizing complex DB joins.
Full-Stack Context: Deep experience in Node.js and React, ensuring backends play perfectly with mobile and web teams.
Sanity in the Age of AI: I bridge the gap between "best practices" and modern speed, ensuring your project isn't just built fast, but built to last.
Anthony Akpan
Developer with 8 years of experience building softwares fro startups
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get HelpFrequently Asked Questions
How long should verification links be valid?
At least 24 hours. Many users don't check email immediately. Supabase default is 24 hours but you can extend it in Authentication → Settings.
Can I skip email verification?
Technically yes — you can disable it in Supabase Auth settings. But this allows fake accounts and makes it impossible to send password reset emails, so it's not recommended for production apps.