420035: Knowledge source bad request

The web crawler received a 400 Bad Request when attempting to access the target URL during knowledge ingestion.

• The URL contains invalid query parameters or malformed request syntax
• The target server rejected the crawler's request format
• Required headers or authentication information are missing
• The target site has strict validation that rejects automated crawlers

• Verify the URL is correctly formatted with valid query parameters
• Ensure the URL is publicly accessible without special authentication requirements
• Test the URL in a web browser to confirm it loads without errors
• Remove the knowledge source if it requires authentication or special headers that the crawler cannot provide
• Review the knowledge source error details in the Twilio Console for more information