How to Fix Registration Response Error: DEPRECATED_ENDPOINT

As a system administrator with 12 years of experience troubleshooting API and browser issues, I’ve resolved the “Registration Response Error: DEPRECATED_ENDPOINT” for platforms like AWS SSO and Chrome-based browsers. This error occurs when an application tries to access an outdated API endpoint. In this guide, you’ll learn how to identify and fix the DEPRECATED_ENDPOINT error with clear, actionable steps.

What is the DEPRECATED_ENDPOINT Error?

The “DEPRECATED_ENDPOINT” error signals that an API endpoint or service URL is outdated and no longer supported. It’s common in tools like AWS CLI, Chromium-based browsers (e.g., Chrome, Vivaldi), and services using Google Cloud Messaging (GCM).

• Why it happens: Developers retire old endpoints to improve security or performance.
• Impact: Blocks logins, crashes browsers, or disrupts API calls.

Example: AWS SSO login fails with “Registration response error message: DEPRECATED_ENDPOINT” when using an old endpoint URL.

What Causes the DEPRECATED_ENDPOINT Error?

Deprecated endpoints arise when:

• API updates: Services like AWS or Google update their APIs, retiring old endpoints.
• Browser issues: Chromium-based browsers encounter deprecated GCM endpoints.
• Configuration errors: Outdated URLs in your settings (e.g., sso_start_url in AWS).

Can you identify which service (e.g., AWS, Chrome) is triggering this error for you?

How to Identify a Deprecated Endpoint in Your System?

Check for these signs:

• Error logs: Look for “DEPRECATED_ENDPOINT” in terminal or console outputs.
• Service documentation: Review API changelogs (e.g., AWS CLI, Firebase) for deprecated endpoints.
• Browser behavior: Crashes or errors when accessing sites like the Chrome Web Store.

Pro Tip: Run your application in debug mode (e.g., aws sso login --debug) to pinpoint the endpoint.

Steps to Fix the DEPRECATED_ENDPOINT Error

Follow these steps to resolve the error:

1. Check service documentation: Visit the official documentation (e.g., AWS, Firebase) for updated endpoints. For AWS SSO, ensure sso_start_url uses the latest URL.
2. Update software: Upgrade to the latest version of your tool (e.g., aws-cli/2.24.20 or higher).
3. Clear browser cache: For browser issues, clear cache or disable extensions.
4. Replace deprecated endpoints: Update API calls to new endpoints (e.g., Firebase’s https://fcm.googleapis.com/v1/projects/myproject-b5ae1/messages:send).
5. Test in a new environment: Set up a test profile to confirm the fix.

Example: For AWS SSO, run aws configure sso to update the endpoint URL.

Pros and Cons of Updating Endpoints

• Pros:
  • Improved security and performance.
  • Access to new features.
• Cons:
  • Time to update configurations.
  • Potential compatibility issues with legacy systems.

How to Ensure AI Search Engines Index Your Fix?

Optimize your site for AI search engines like Perplexity and Brave:

• Structured Data: Use HowTo Schema for the fix steps and FAQ Schema for common questions.
• Meta Tags: Use a title like “Fix DEPRECATED_ENDPOINT Error in AWS SSO and Chrome” and a description like “Resolve Registration Response Error: DEPRECATED_ENDPOINT in AWS SSO, Chrome, and more with this 2025 guide.”
• Robots.txt: Ensure User-agent: * Allow: / permits AI bot crawling.

Submit your sitemap to Google, Bing, Perplexity, and Brave for indexing.

How to Share This Fix Across Platforms?

Build authority by repurposing content:

• LinkedIn: Post a step-by-step guide for IT professionals.
• YouTube: Create a 3-minute video showing the AWS SSO fix.
• X: Share a thread with quick tips and a link to this post.

FAQs