You are creating an automation that must copy a file from an on-premises shared folder to a Microsoft SharePoint library. The automation must be…

The scenario requires connecting an on-premises data source (a file share) to a cloud service (SharePoint Online), initiated by an on-premises event. The standard and most direct method for this is to use a cloud flow (B). This cloud flow will host the automation logic. To enable the cloud flow to monitor and access the on-premises shared folder, the on-premises data gateway (D) is a mandatory component. The cloud flow would use the "File System" connector's trigger, "When a file is created," which relies on the gateway to bridge the connection between the Power Automate cloud service and the local network.

A. A desktop flow is not required. The File System connector within a cloud flow is the purpose-built tool for this server-side integration, avoiding the need for UI-based automation.

C. Machine registration is used to connect a specific machine to the cloud for running desktop flows. Since a desktop flow is not the optimal solution, machine registration is not necessary.

1. Microsoft Documentation - File System Connector: "To use this connector, you need to have an on-premises data gateway installed on a local machine." This document also lists the trigger "When a file is created," which runs in a cloud flow.

Source: Microsoft Learn, "File System - Connectors". Section: "Prerequisites".

2. Microsoft Documentation - On-premises data gateway: "The on-premises data gateway acts as a bridge. It provides quick and secure data transfer between on-premises data... and several Microsoft cloud services... [including] Power Automate."

Source: Microsoft Learn, "What is an on-premises data gateway?".

3. Microsoft Documentation - Cloud flows: "Create a cloud flow when you want your automation to be triggered either automatically, instantly, or via a schedule." The scenario's requirement for an automatic trigger ("after a file is created") is a primary function of a cloud flow.

Source: Microsoft Learn, "Get started with Power Automate". Section: "Types of flows".