What is Sub flow?

A subflow, often found in visual programming environments and workflow automation tools, is a self-contained, reusable module within a larger flow or application. It encapsulates a series of connected nodes or steps that perform a specific function. Subflows promote modularity, reduce redundancy, and improve code organization by allowing you to define a complex operation once and then reuse it multiple times within the main flow or in other flows. This simplifies development, enhances maintainability, and makes it easier to manage complex workflows.