◾️Configuration
In the steps Azure IoT Hub-Azure Stream Analytics-Azure Data Lake Storage, the data of Device-to-Cloud Messaging of Azure IoT Hub is accumulated in Table Storage and Data Lake Storage.

◾️Problem
When Runtime Errors occur in Stream Analytics in this configuration, I can see the details of the error in the activity log, but I don't know how to determine if this error is causing data loss.

◾️Request
Instead of comparing the number of input and output data of Stream Analytics, I would like to compare the contents of data output from the IoT Hub with the contents of data after passing Stream Analytics to check if there is any data loss.