Building an app typically involves data from more than one source, while this can sometimes be done at the application level, there are also cases where integrating this data together into a common store allows for an easier app building experience, and a single set of logic to maintain and operate over the data. Common Data Service allows data to be integrated from multiple sources into a single store which can then be used in Power Apps, Power Automate, Power BI, and Power Virtual Agents along with data already available from the Dynamics 365 applications.
With advanced data preparation available in Power Apps, you can create a collection of data called a dataflow, which you can then use to connect with business data from various sources, clean the data, transform it, and then load it to Common Data Service storage account.
In this session the Business Applications Microsoft MVP Yash Agarwal is introducing us into the Custom Data Service and how to sync our data into CDS using Dataflows.