You are creating a canvas app. You select the form factor of the app. You need to add a source of the data. What should you use?

A screen is a visual container for UI elements within an app, but it does not directly add or manage data sources.

A connector is the specific component within a canvas app that enables connection to external data sources like SharePoint, Dataverse, SQL Server, or Excel, allowing the app to retrieve, update, and manage data.

A formula is an expression used to define logic, calculations, or actions within an app, not to establish a connection to an external data source.

A control is an interactive user interface element like a button or text input, used for display and user interaction, but it does not represent the data source itself.