Lovable
email
Email Template Variables Showing Blank in Lovable App
Emails sent from your Lovable app contain blank spaces or literal placeholder text where dynamic content should be — for example, 'Hello {{name}}' instead of 'Hello John', or 'Your order #{{orderId}}' with blank values.
This makes your app look unprofessional and can confuse users. They receive emails that don't contain the information they need, like order details, account information, or personalized content.
The issue might affect all emails or only certain templates, and might work correctly in development but fail in production.
Error Messages You Might See
Template variable 'name' is undefined
Cannot read property of null
Email sent but content is empty
Common Causes
- Wrong template syntax — Using {{ }} when the email service expects {{{ }}} or ${} or other syntax
- Variables not passed to send function — The email sending code doesn't include the dynamic data in the API call
- Async data not awaited — Data is fetched from the database but the email is sent before the query completes
- Case sensitivity — Template uses {{Name}} but code passes {name} (case mismatch)
- Null or undefined values — The data exists in the database but is null for some users
How to Fix It
- Check your email service documentation — Verify the correct template variable syntax for your email provider (Resend, SendGrid, etc.)
- Log the email data before sending — Add console.log to verify all template variables have values before the email is sent
- Add null fallbacks — Use default values for any variable that might be null: name || 'there'
- Test with hardcoded values — Replace variables with static text to verify the template renders correctly, then add variables back one by one
- Check async/await — Ensure all database queries are awaited before passing data to the email function
Real developers can help you.
Vlad Temian
15+ years shipping production infrastructure for startups. Former CTO at qed.builders (acquired by The Sandbox).
Cursor ambassador and agentic tooling builder.
I've scaled systems, automated deployments, and built observability tools for AI coding workflows. I specialize in taking vibe-coded apps from broken prototype to production-ready: fixing Supabase auth/RLS, Stripe integrations, deployment pipelines, and cleaning up AI-generated spaghetti.
I build tools in this space (agentprobe, claudebin, micode) and understand both sides: how AI generates code and why it breaks.
https://blog.vtemian.com/
Jared Hasson
Full time lead founding dev at a cyber security saas startup, with 10 yoe and a bachelor's in CS. Building & debugging software products is what I've spent my time on for forever
Basel Issmail
’m a Senior Full-Stack Developer and Tech Lead with experience designing and building scalable web platforms. I work across the full development lifecycle, from translating business requirements into technical architecture to delivering reliable production systems.
My work focuses on modern web technologies, including TypeScript, Angular, Node.js, and cloud-based architectures. I enjoy solving complex technical problems and helping teams turn product ideas and prototypes into working platforms that can grow and scale.
In addition to development, I often collaborate closely with product managers, business analysts, designers, and QA teams to ensure that solutions align with both technical and business goals.
I enjoy working with startups and product teams where I can contribute both as a hands-on engineer and as a technical partner in designing and delivering impactful software.
Franck Plazanet
I am a Strategic Engineering Leader with over 8 years of experience building high-availability enterprise systems and scaling high-performing technical teams. My focus is on bridging the gap between complex technology and business growth.
Core Expertise:
🚀 Leadership: Managing and coaching teams of 15+ engineers, fostering a culture of accountability and continuous improvement.
🏗️ Architecture: Enterprise Core Systems, Multi-system Integration (ERP/API/ETL), and Core Database Structure.
☁️ Cloud & Scale: AWS Expert; architected systems handling 10B+ monthly requests and managing 100k+ SKUs.
📈 Business Impact: Aligning tech strategy with P&L goals to drive $70k+ in monthly recurring revenue.
I thrive on "out-of-the-box" thinking to solve complex technical bottlenecks and am always looking for ways to use automation to improve business productivity.
zipking
I am a technologist and product builder dedicated to creating high-impact solutions at the intersection of AI and specialized markets. Currently, I am focused on PropScan (EstateGuard), an AI-driven SaaS platform tailored for the Japanese real estate industry, and exploring the potential of Archify.
As an INFJ-T, I approach development with a "systems-thinking" mindset—balancing technical precision with a deep understanding of user needs. I particularly enjoy the challenge of architecting Vertical AI SaaS and optimizing Small Language Models (SLMs) to solve specific, real-world business problems. Whether I'm in a CTO-level leadership role or hands-on with the code, I thrive on building tools that turn complex data into actionable value.
Luca Liberati
I work on monoliths and microservices, backends and frontends, manage K8s clusters and love to design apps architecture
Krishna Sai Kuncha
Experienced Professional Full stack Developer with 8+ years of experience across react, python, js, ts, golang and react-native. Developed inhouse websearch tooling for AI before websearch was solved : )
Tejas Chokhawala
Full-stack engineer with 5 years experience building production web apps using React, Next.js and TypeScript.
Focused on performance, clean architecture and shipping fast.
Experienced with Supabase/Postgres backends, Stripe billing, and building AI-assisted developer tools.
Daniel Vázquez
Software Engineer with over 10 years of experience on Startups, Government, big tech industry & consulting.
PawelPloszaj
I'm fronted developer with 10+ years of experience with big projects. I have small backend background too
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get HelpFrequently Asked Questions
Why do my emails work in testing but not production?
Common causes include different environment variables, different database data (test users have all fields filled, real users may have null fields), and different email service configurations between environments.
How can I preview my emails before sending?
Most email services offer a preview feature. You can also send test emails to yourself with sample data. Services like Resend and SendGrid have built-in template previews.