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.

Jen Jacobsen Jen Jacobsen I’m a Full-Stack Developer with over 10 years of experience building modern web and mobile applications. I enjoy working across the full product lifecycle — turning ideas into real, well-built products that are intuitive for users and scalable for businesses. I particularly enjoy building mobile apps, modern web platforms, and solving complex technical problems in a way that keeps systems clean, reliable, and easy to maintain. AUXLE AUXLE I am a Full Stack Developer experienced in building Websites, Web apps and Cross Platform Mobile Apps for Startups and Companies. Taufan Taufan I’m a product-focused engineer and tech leader who builds scalable systems and turns ideas into production-ready platforms. Over the past years, I’ve worked across startups and fast-moving teams, leading backend architecture, improving system reliability, and shipping products used by thousands of users. My strength is not just writing code — but connecting product vision, technical execution, and business impact. 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 Luca Liberati Luca Liberati I work on monoliths and microservices, backends and frontends, manage K8s clusters and love to design apps architecture Rudra Bhikadiya Rudra Bhikadiya I build and fix web apps across Next.js, Node.js, and DBs. Comfortable jumping into messy code, broken APIs, and mysterious bugs. If your project works in theory but not in reality, I help close that gap. MFox MFox Full-stack professional senior engineer (15+years). Extensive experience in software development, qa, and IP networking. rayush33 rayush33 JavaScript (React.js, React Native, Node.js) Developer with demonstrated industry experience of 4+ years, actively looking for opportunities to hone my skills as well as help small-scale business owners with solutions to technical problems Simon A. Simon A. I'm a backend developer building APIs, emulators, and interactive game systems. Professionally, I've developed Java/Spring reporting solutions, managed relational and NoSQL databases, and implemented CI/CD workflows. Pratik Pratik SWE with 15+ years of experience building and maintaining web apps and extensive BE infrastructure

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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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