# Can't use 'Empty' in campaign builder

**URL:** <https://forum.mautic.org/t/cant-use-empty-in-campaign-builder/7881>\
**Category:** Product Support\
**Created:** [March 11, 2017, 2:06am UTC](https://forum.mautic.org/t/cant-use-empty-in-campaign-builder/7881 "2017-03-11T02:06:47Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![JoPitts](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/jopitts/32/636_2.png) [@JoPitts](https://forum.mautic.org/u/JoPitts)\
**Post date:** [March 11, 2017, 2:06am UTC](https://forum.mautic.org/t/cant-use-empty-in-campaign-builder/7881/1 "2017-03-11T02:06:47Z")

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Hi there.  
  
I’m using campaign builder (or at least trying to).  
  
  
  
I have a field (Number Of Bedrooms) that has been configured as a look up field with values of 1,2, and 3.  
  
  
  
I have the field as part of a form set for progressive profiling. The field is mandatory, but not in the first submit of the form.  
  
  
  
In campaign builder I have the following  
  
 ![KpHqXrR.png](https://i.imgur.com/KpHqXrR.png)  
  
however, when I change the operator from equals to empty, and save it, it reverts back to equals.  
  
  
  
How do I resolve this issue. The goal is to see if the user has entered the second phase of the form by determining if that value is filled in yet.  
  
  
  
Any thoughts?  
  
  
  
Cheers  
  
Jo

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<div class="post-metadata">

**Author:** ![JoPitts](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/jopitts/32/636_2.png) [@JoPitts](https://forum.mautic.org/u/JoPitts)\
**Post date:** [March 11, 2017, 2:06am UTC](https://forum.mautic.org/t/cant-use-empty-in-campaign-builder/7881/2 "2017-03-11T02:06:47Z")

</div>

Hi there.  
I’m using campaign builder (or at least trying to).

I have a field (Number Of Bedrooms) that has been configured as a look up field with values of 1,2, and 3.

I have the field as part of a form set for progressive profiling. The field is mandatory, but not in the first submit of the form.

In campaign builder I have the following  
 ![](https://i.imgur.com/KpHqXrR.png)  
however, when I change the operator from equals to empty, and save it, it reverts back to equals.

How do I resolve this issue. The goal is to see if the user has entered the second phase of the form by determining if that value is filled in yet.

Any thoughts?

Cheers  
Jo

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<div class="post-metadata">

**Author:** ![JoPitts](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/jopitts/32/636_2.png) [@JoPitts](https://forum.mautic.org/u/JoPitts)\
**Post date:** [March 20, 2017, 4:05am UTC](https://forum.mautic.org/t/cant-use-empty-in-campaign-builder/7881/3 "2017-03-20T04:05:11Z")

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Bueller… Bueller…  
Anyone?  
I’m still trying to work this one out.  
Failing that, if anyone else has a different mechanism to use to determine where someone is up to in the progressive profiling journey, that would be equally awesome (as that is what I am trying to achieve in this specific case).  
Cheers

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<div class="post-metadata">

**Author:** ![JoPitts](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/jopitts/32/636_2.png) [@JoPitts](https://forum.mautic.org/u/JoPitts)\
**Post date:** [March 20, 2017, 5:11am UTC](https://forum.mautic.org/t/cant-use-empty-in-campaign-builder/7881/4 "2017-03-20T05:11:43Z")

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@MxyzptlkFishStix , thanks for the heads up. At this point, I’ll wait 🙂  
Cheers  
Jo