https://community.appian.com/discussions/f/data/6354/i-have-a-process-model-that-has-a-cdt-as-a-parameter-i-have-a-data-sourceI have a process model that has a CDT as a parameter. I have a Data Source Entity backed record that is using that CDT to define the record type. Fields of this data type are available for use with the &quot;record field&quot; (rf!) domain. Is there a way to passen-USTelligent Community 12https://community.appian.com/thread/24817?ContentTypeID=1Wed, 18 Nov 2015 13:21:31 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:41759cdd-8572-4500-96e5-87a3a831a46ePhilBTo be honest, the correct solution is probably to change the process model to use an ID as an input, and then retrieve the CDT within the process if it&#39;s required. Alternatively, wrap the existing process model in a process which accepts an ID, queries the database for the CDT and then starts the existing process.<div style="clear:both;"></div>https://community.appian.com/thread/24810?ContentTypeID=1Wed, 18 Nov 2015 06:00:39 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:208ca96b-0c1a-4ac6-bb30-ab881d11975dShyam BommakantiI suggest create a rule that takes the CDT and individual CDT attribute values and construct and return the CDT from the rule. The CDT input will be null, it will only help you in checking precedents when the CDT is updated. <br /><br />But, again it will be manual step to update the rule.<div style="clear:both;"></div>https://community.appian.com/thread/24804?ContentTypeID=1Wed, 18 Nov 2015 05:09:43 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:77978a35-c88a-4715-8d01-a0f942192a3dajinkyab277I reckon using query rule or query entity is better approach , as with in flight CDT approach each time u need update your expression to scatter it for CDT change.<div style="clear:both;"></div>https://community.appian.com/thread/24803?ContentTypeID=1Wed, 18 Nov 2015 04:57:41 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:ab17e9fa-7e7b-4454-a08a-8e0fb8530353nicholash893817Thanks! That&#39;s not a bad idea. I&#39;m only trying to avoid querying the DB since we already have the data available.<div style="clear:both;"></div>https://community.appian.com/thread/24802?ContentTypeID=1Wed, 18 Nov 2015 04:33:14 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:4d5dca15-49c5-4caa-b2a7-85a5b2263007PhilBI guess you could try constructing the CDT using a type constructor and the rf! fields - something like:<br /><br />type!myCDT(<br />id: rf!id,<br />field1: rf!field1,<br />someValue: rf!someValue<br />)<div style="clear:both;"></div>