https://community.appian.com/discussions/f/rules/30639/expression-ruleHi, I have a expression rule which has the result : Name - Company - Phoneno. I concatenated with &quot;-&quot; when I get the above 3 values. In some cases, the name can be blank / company / phone no. If the name is blank, my result is like -company-phonenoen-USTelligent Community 12https://community.appian.com/thread/121798?ContentTypeID=1Thu, 16 Nov 2023 12:23:41 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:e46b33a0-69a2-4725-979f-310732946640hema.mathivathanan<p>Thanks Mathieu, I used joinArray and it worked!</p><div style="clear:both;"></div>https://community.appian.com/thread/121796?ContentTypeID=1Thu, 16 Nov 2023 12:20:03 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:2ab71de6-19a4-4cd0-9b1a-c67e4aece78dMathieu Drouin<p>Edited my response with something a little more robust.</p><div style="clear:both;"></div>https://community.appian.com/thread/121793?ContentTypeID=1Thu, 16 Nov 2023 12:17:03 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:a62cc392-81d1-40b4-b765-a8d918d73415hema.mathivathanan<p>a!localVariables(<br /> local!part1: &quot;&quot;,<br /> local!part2: &quot;part2&quot;,<br /> local!part3: &quot;&quot;,<br /> concat(<br /> local!part1,<br /> if(a!isNotNullOrEmpty(local!part2), concat(&quot; - &quot;, local!part2), &quot;&quot;),<br /> if(a!isNotNullOrEmpty(local!part3), concat(&quot; - &quot;, local!part3), &quot;&quot;)<br /> )<br />), In this case it will return -part2</p><div style="clear:both;"></div>https://community.appian.com/thread/121792?ContentTypeID=1Thu, 16 Nov 2023 12:15:28 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:1fb406ae-9fff-46c3-b447-e049add02152Mathieu Drouin<p><pre class="ui-code" data-mode="text">a!localVariables( local!part1: &quot;&quot;, local!part2: &quot;part2&quot;, local!part3: &quot;&quot;, local!stringsToConcat: { local!part1, local!part2, local!part3 }, joinarray(local!stringsToConcat, &quot; - &quot;) )</pre></p><div style="clear:both;"></div>