C# Corner: How To Generate Audio For My Facebook Post Using Microsoft Flow. “Microsoft Flow is a cloud-based service. It allows us to react to an event in one service and do something with the data from that event into another service. The users can build workflows that automatically do some business tasks and processes across applications and services. It helps us to monitor all our workflow with the help of a great cloud solution called ‘Microsoft Flow’.” I haven’t seen many how-to articles focusing on Flow, and this one is very thorough.