If you encounter the error "100: Invalid Flow JSON version" while working with WhatsApp API, it means the version specified in your API call is incorrect, missing, or no longer supported. Follow this guide to troubleshoot and resolve the issue.

What are Version States?

Each Flow JSON version falls into one of these states:

  • Active: Can be used for new Flows.

  • Frozen: Cannot be used for new Flows, but existing Flows remain functional.

  • Expired: No longer works, and associated Flows stop functioning.

Possible Causes of the Error

  • Incorrect Version Format: There may be a typo or incorrect version number in the API request.

  • Missing Version: The API request does not specify a version.

  • Frozen Version: The specified version is no longer available for creating or updating Flows.

  • Expired Version: The version is deprecated and cannot be used.

Step-by-Step Troubleshooting Guide

1. Verify the Version Number

Double-check the version number in your API request. Ensure there are no typos or formatting errors.

2. Check for the Latest Active Version

Go to the official WhatsApp API Changelog. Identify the most recent active version and update your API request accordingly.

3. Upgrade to a Supported Version

  • If your version is frozen or expired, migrate to an active version.

  • WhatsApp provides a 90-day notice before freezing or expiring versions.

  • Check the Changelog regularly for updates.

4. Stay Informed About Deprecation Notices

  • WhatsApp aims to support versions for 12 months before freezing and another 12 months before expiration.

  • Some versions may be deprecated sooner due to external requirements.

  • Subscribe to official updates to avoid unexpected disruptions.

5. Modify and Resend Your API Request

  • Replace the outdated version number with the latest active version.

  • Resend your API request and verify that the error is resolved.

By following these steps, you can troubleshoot and resolve the "Invalid Flow JSON Version" error efficiently, ensuring smooth functionality for your WhatsApp Flows. For more troubleshooting tips related to WhatsApp API check out heltar.com/blogs.