https://community.appian.com/discussions/f/process/23301/process-modelHi! As I am new to Appian, so I have faced a problem while creating a process model. I wanted to know how can we check in a process model whether the employee id of the user already exists in the database but is in the inactive state or it is a newen-USTelligent Community 12https://community.appian.com/thread/89445?ContentTypeID=1Tue, 04 Jan 2022 06:44:01 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:103b8a8f-ea04-4112-bd0f-6e9be0f8ef83Stefan Helzle<p>In general, you can call any Appian function in a process model. In your case, the function isusernametaken().</p> <p><a href="https://docs.appian.com/suite/help/21.4/fnc_people_isusernametaken.html">https://docs.appian.com/suite/help/21.4/fnc_people_isusernametaken.html</a></p> <p>To find out whether a user is inactive, you might want to deploy the following plugin</p> <p><a href="/b/appmarket/posts/people-functions---plug-in">https://community.appian.com/b/appmarket/posts/people-functions---plug-in</a></p> <p>and use the function&nbsp;<span>isuseractive().</span></p><div style="clear:both;"></div>