Upload Files Directly from a Flow

With just a few clicks, your users can attach files during a flow. Just add the File Upload component to your flow screens using a Lightning component field. This feature is new in Lightning Experience. However, it works only for flows that use Lightning runtime.
Upload a file from Flow.

To add the File Upload component to a flow screen, add a Lightning component field to the screen. For Lightning Component, select forceContent:fileUpload. Then configure the attributes.