https://community.appian.com/discussions/f/data/25541/create-my-own-dataHI all. I&#39;m wondering how can I create my own data to use them while creating my application? or should I create them outside, then import them to Appian?en-USTelligent Community 12https://community.appian.com/thread/99631?ContentTypeID=1Wed, 17 Aug 2022 14:24:43 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:4430bb84-c085-429f-b06c-5f03096f117cHarshit Bumb (Appyzie)<p>You can use a database, expression rules, and constants for storing your real/dummy data.</p><div style="clear:both;"></div>https://community.appian.com/thread/99630?ContentTypeID=1Wed, 17 Aug 2022 14:23:21 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:1baee1f8-fc9e-40dd-9b85-0d7407630109Chris<p>Are you referring to <a href="https://docs.appian.com/suite/help/22.2/cdt_design_guidance.html">Custom Data types</a>?&nbsp; Creating via the Appian GUI or instead via an XSD file and importing?&nbsp; In which case, both work fine - the GUI is simpler for design but XSD is used to add more advanced configurations when necessary.</p><div style="clear:both;"></div>