https://community.appian.com/discussions/f/new-to-appian/22093/cdtWhat is the use of Foreign key while creating a CDT in Appian? Please give a brief understanding on the same with an example.en-USTelligent Community 12https://community.appian.com/thread/86534?ContentTypeID=1Fri, 01 Oct 2021 10:38:52 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:d01ea196-6c76-4aae-a8ff-2ff875da96d4Bilal Qasim<p>Foreign keys in a CDT can provide context for a related table. Please see&nbsp;<a title="Custom Data Type (CDT) Design Guidance &gt; Nested CDTs" href="https://docs.appian.com/suite/help/21.2/cdt_design_guidance.html#nested-cdts">https://docs.appian.com/suite/help/21.2/cdt_design_guidance.html#nested-cdts</a>&nbsp;for more</p><div style="clear:both;"></div>