As a business intelligence tool, Power BI reads a data set, analyzes it, and then come up with insights that would help you make better business decisions.
The first thing you do with Power BI is connect with different data sets and turn them into data models, insights, and visuals.
This is where Power BI connectors come in. They help you connect with apps, services, and data in the cloud.
Microsoft defines a connector as a:
“…proxy or a wrapper around an API that allows the underlying service to talk to Microsoft Flow, PowerApps and Logic Apps.”