Microsoft has reached General Availability and is now a component of many Office 365 plans. If you haven't heard of this service before:
"Microsoft Flow is a cloud-based service that makes it simple to automate common tasks and business processes across your applications and services, such as Office 365, Slack, Dropbox, SalesForce.com, Dynamics 365 and many more."
Today it's GA:
"Today we are announcing the General Availability of Microsoft Flow. That means Microsoft Flow is ready to support business automation around the world in 42 languages and six regions. With this release Microsoft Flow is ready for production use and you now get the 99.9% SLA you would expect from Microsoft."
Here are the Office 365 plans that include Microsoft Flow: