The data that you collect on your point-of-sale system could complement data that your website and app sends to Google Analytics. Which feature allows for the collection and sending of events directly to Google Analytics servers?

The Measurement Protocol allows you to send raw data directly to Google Analytics servers from any internet-connected environment, including offline systems like point-of-sale (POS) systems. This enables you to integrate data from various sources beyond websites and apps, providing a more comprehensive view of user interactions. "Modify event" is a feature within Google Analytics to change existing event parameters or names, not to send new data. "Data import" is used for uploading data like cost data or user-ID data in bulk, typically via CSV files, rather than sending real-time events. An "HTTP request" is a general web communication method, but the Measurement Protocol is the specific, structured API designed by Google for sending data to Google Analytics.