What feature is required to send data from a web-connected device (like a point-of-sale system) to Google Analytics?

The Measurement Protocol

Explanation:

Based on the information provided within the question it can be said that the feature that is being described is called the Measurement Protocol. This is a feature that allows any device that is connected to the internet to send data to Google Analytics, and can be used on many devices that cannot access the website or mobile application such as a point-of-sale system.

answer; i think/believe the correct answer is balance sheet;