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.
Matt Butler
Software Engineer @ AWS
legrab
I'll fill this later
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 : )
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
AUXLE
I am a Full Stack Developer experienced in building Websites, Web apps and Cross Platform Mobile Apps for Startups and Companies.
prajwalfullstack
Hi Im a full stack developer, a vibe coded MVP to Market ready product, I'm here to help
Caio Rodrigues
I'm a full-stack developer focused on building practical and scalable web applications. My main experience is with **React, TypeScript, and modern frontend architectures**, where I prioritize clean code, component reusability, and maintainable project structures.
I have strong experience working with **dynamic forms, state management (Redux / React Hook Form), and complex data-driven interfaces**. I enjoy solving real-world problems by turning ideas into reliable software that companies can actually use in their daily operations.
Beyond coding, I care about **software quality and architecture**, following best practices for componentization, code organization, and performance optimization.
I'm also comfortable working across the stack when needed, integrating APIs, handling business logic, and helping transform prototypes into production-ready systems.
My goal is always to deliver solutions that are **simple, efficient, and genuinely useful for the people using them.**
hanson1014
Full-stack developer experienced in fixing and deploying AI-generated apps from Lovable, Bolt.new, Cursor, and Replit. I specialize in debugging Supabase integration issues (auth flows, RLS policies, database connections), fixing broken deployments, resolving routing/blank screen problems, and cleaning up messy React/Vite codebases. I also build production apps with the Claude API and have shipped a Mac desktop dev tool (Nexterm from scratch. Based in Hong Kong, fast turnaround.
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.
Nam Tran
10 years as fullstack developer
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.