The Google AnalyticsSendEvent component sends events using the Google Analytics Measurement Protocol.
For details of Measurement Protocol and parameters, please refer to this link.
Checking “Debug Mode” puts you in debug mode. In debug mode, if “Tracking ID” is incomplete, an error will be displayed, but it will not be counted as an event. Accordingly, if you are not in debug mode, you will not get an error even if the parameters are incomplete, so be careful.