What is it?

Simply Put

Office 365 Flow is Microsoft's built in version of If This Then That (IFTTT).

Digging in a Bit More

Flow allows you to automate all kinds of things. The most powerful feature is how Flow is hooked into almost every single application within Office 365.

Flow leverages 'Connectors' that allow applications to be easily connected together. Connectors consist of two parts; triggers and actions. Triggers are what start a flow and actions are the things that the flow is programed to do.

For example the flow below leverages the 'One Drive' connector with the 'When a file is created' trigger to detect when a file has been created in the Documents folder. When a new file is created it then moves on to the 'HTTP' connector a leverages the action to send a POST request to a web server.

The HTTP connector pulls dynamic data from the One Drive connector so that it can send the file name, file content, and other various attributes about the file to the listening web server.