420016: Knowledge create validation failed

The request to create a knowledge item contains invalid or malformed data and was rejected.

• Invalid JSON format in request body
• Missing required fields
• Invalid field values that don't match specific validation rules (e.g., name length, description length)

• Verify the request body is valid JSON
• Ensure all required fields are provided
• Check field lengths and formats meet API requirements
• Review the API error details for specific validation failures