Base44 api

Webhooks Not Receiving or Processing Data in Base44

You've set up a webhook endpoint in your Base44 app to receive data from an external service (such as payment notifications from Stripe, form submissions from another platform, or updates from a CRM), but the webhook data never arrives or is not processed correctly.

Webhooks are crucial for real-time integrations. When they fail, your app misses important events like payment confirmations, status updates, or new lead notifications, potentially causing business-critical failures.

The failure may be silent: the external service reports successful delivery but your Base44 app shows no record of receiving the data.

Error Messages You Might See

Webhook delivery failed: 404 Not Found Webhook delivery failed: 500 Internal Server Error Webhook delivery failed: timeout Invalid webhook signature
Webhook delivery failed: 404 Not FoundWebhook delivery failed: 500 Internal Server ErrorWebhook delivery failed: timeoutInvalid webhook signature

Common Causes

  1. The webhook URL configured in the external service doesn't match the actual endpoint in your Base44 app
  2. The webhook endpoint requires authentication that the external service isn't providing
  3. The incoming payload format (JSON structure) doesn't match what the Base44 handler expects
  4. The webhook handler takes too long to process and the external service times out before receiving a response
  5. The webhook endpoint only exists in the editor environment and wasn't deployed to production

How to Fix It

Verify the webhook URL by sending a test request using a tool like webhook.site or Postman. Confirm the endpoint is accessible and returns a 200 response.

Check the external service's webhook delivery logs (most services like Stripe provide these) to see if the delivery attempt failed and what error was returned.

Ensure the webhook endpoint is deployed and accessible in your production environment. For webhooks that handle critical business events, a developer can implement proper error handling, retry logic, and payload validation.

Real developers can help you.

Dor Yaloz 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 Basel Issmail 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. Nam Tran Nam Tran 10 years as fullstack developer Omar Faruk Omar Faruk As a Product Engineer at Klasio, I contributed to end-to-end product development, focusing on scalability, performance, and user experience. My work spanned building and refining core features, developing dynamic website templates, integrating secure and reliable payment gateways, and optimizing the overall system architecture. I played a key role in creating a scalable and maintainable platform to support educators and learners globally. I'm enthusiastic about embracing new challenges and making meaningful contributions. Milan Surelia 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. Matthew Jordan Matthew Jordan I've been working at a large software company named Kainos for 2 years, and mainly specialise in Platform Engineering. I regularly enjoy working on software products outside of work, and I'm a huge fan of game development using Unity. I personally enjoy Python & C# in my spare time, but I also specialise in multiple different platform-related technologies from my day job. Jared Hasson 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 Pratik Pratik SWE with 15+ years of experience building and maintaining web apps and extensive BE infrastructure Jacek Rozanski Jacek Rozanski Senior PHP/Symfony developer and DevOps engineer with 20+ years of professional experience, running opcode.pl (web development agency, est. 2004). Day job: I'm the sole backend developer at merketing company where I own and maintain 11 PHP/Symfony microservices on AWS (ECS Fargate, RDS, S3, CloudFront), handle the full CI/CD pipeline (Bitbucket Pipelines, Docker), and manage monitoring with Sentry and CloudWatch. These services handle high request volumes in production every month. What I bring to AI-built apps: - I audit and fix security issues (OWASP methodology), performance bottlenecks, and architectural problems in codebases generated by Cursor, Claude Code, Lovable, Bolt, and v0 - I refactor AI-generated prototypes into production-grade applications with proper error handling, testing, and clean architecture (SOLID, DDD, hexagonal architecture) - I set up the infrastructure AI tools don't touch: AWS hosting, CI/CD pipelines, automated deployments, database optimization, monitoring, and alerting - I integrate external services: payment providers, email systems, partner APIs, SSO/auth Tech stack: PHP 8.x, Symfony, React, Next.js, PostgreSQL, MySQL, Docker, AWS (ECS, RDS, S3, SQS/SNS, CloudFront), Terraform, Supabase. I also use AI tools daily (Claude Code, Cursor) in my own workflow, so I understand both the strengths and the gaps in AI-generated code. Based in Poland (CET timezone). Available for async work and calls during EU/US business hours. ISHANTDEEP SINGH ISHANTDEEP SINGH Senior Software Engineer with 7+ years of experience in React, JavaScript, TypeScript, Next.js, and Node.js. I’ve also worked as a tech lead for startups, owning end-to-end technical execution including architecture, development, scaling, and delivery. I bring a strong mix of hands-on coding, product thinking, and technical leadership, and I’m comfortable building products from scratch as well as improving and scaling existing systems.

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Frequently Asked Questions

Why isn't my Base44 webhook receiving data?

Check the webhook URL is correct and accessible in production (not just the editor). Review the sending service's delivery logs for error codes or timeout messages.

How do I test webhooks in Base44?

Use a tool like Postman to send a test POST request to your webhook URL with a sample payload. Check if the endpoint responds with 200 and processes the data correctly.

Related Base44 Issues

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