Most of my posts have been about using Visio as a data consumer by linking Visio shapes to data, but Visio can be the best place to create some data from. For example, an office layout can have personnel or equipment shapes within a workstation area, or space shapes are used to define areas which are used for calculating the space usage chargeback reports. There are non-facilities management related examples too, as the only consideration is what is the best way to create relationships, measure lengths, or calculate areas. These are all tasks that are best done by just moving, resizing, connecting or containing shapes interactively in the Visio interface. In this article I will explain how Microsoft Flow can be used update a data source simply from a Visio document.