> For the complete documentation index, see [llms.txt](https://ryotokuro.gitbook.io/microsoft/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ryotokuro.gitbook.io/microsoft/power-platform/power-platform-fundamentals/introduction-to-common-data-service.md).

# Common Data Service

https\://docs.microsoft.com/en-au/learn/modules/introduction-common-data-service/

Learn about the basics of Common Data Service, and explore ways you can connect and customize data connections to Power Platform applications.

In this module, you will:

* Discover the Common Data Service
* Learn about the Common Data Model
* Identify entities, fields, and relationships
* Learn about environments
* Discover business rules