45004: Validation Error

This error indicates that the request body did not pass validation for the Flex API endpoint you called. Twilio returns this error when one or more fields are missing, use an invalid type or format, or contain values that do not match the expected schema.

• A required property is missing from the request body.
• A field contains a value in an unsupported format.
• A field uses the wrong data type, such as sending a string where the API expects an object or boolean.
• A property value is outside the allowed range or set of accepted values.
• The request includes unexpected or malformed JSON.

• Review the error message in the response body and identify which field failed validation.
• Compare your request body against the endpoint requirements in the Flex API documentation and confirm that all required fields are present.
• Verify that each field uses the expected data type and format.
• Ensure your request body is valid JSON and does not include malformed or unsupported properties.
• Retry the request after correcting the invalid input.

• Twilio Flex documentation