# Udt property parameter in a popup

**URL:** <https://forum.inductiveautomation.com/t/udt-property-parameter-in-a-popup/7968>\
**Category:** Ignition\
**Created:** [February 6, 2014, 8:10am UTC](https://forum.inductiveautomation.com/t/udt-property-parameter-in-a-popup/7968 "2014-02-06T08:10:16Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![mazeyrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mazeyrat/32/10955_2.png) [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\
**Post date:** [February 6, 2014, 8:10am UTC](https://forum.inductiveautomation.com/t/udt-property-parameter-in-a-popup/7968/1 "2014-02-06T08:10:16Z")

</div>

Ignition 7.6.5-rc2  
I pass an udt parameter to a popup.  
I try to access tag properties “EngUnit” with the following expresion but it doesn’t retrun any value ???  
In a template such of expression is ok.  
Do I miss something ???

[attachment=1]bug\_popup.png[/attachment]

With indirect tag, no value returned ?

[attachment=0]bug\_indirect.png[/attachment]