I'm trying to define some criteria in process builder that checks to see if a user was selected in an Assign to User custom lookup field. However, process builder won't let me select that field for the criteria. I am required to traverse the lookup field and select a field on the user object. Is there a way around that? I just need to check if that field != null.

Set Conditions Screen

enter image description here

  • Can you explain your problem briefly..@Allen Mann
    – Pavan tej
    Commented May 6, 2016 at 13:54
  • I have a Quick Action for Case Feed that has an Assign to User field. It is a lookup field to Users. So, in process builder I need to define criteria for the action. If Assign_to_User__c != null I want to continue the process. But I do not see a way to just select that field, I am required to use "Assign to User >" like shown in my screenshot above.
    – Allen Mann
    Commented May 6, 2016 at 13:58

3 Answers 3


Instead of using the Conditions are met you could use Formula evaluates to true and use a formula to determine if it has a value.

enter image description here

  • Ya it works definitely and my suggestion is instead of using ISNULL use ISBLANK @Allen Mann
    – Pavan tej
    Commented May 6, 2016 at 15:00

I was able to make the not null check by using $GlobalConstant.Null when the Type is set to Global Constant.

enter image description here


You need to scroll down a little bit and you will find the field Assign to user.

What you are seeing in image is relationship field.

  • I thought the same, but it's not there.
    – Allen Mann
    Commented May 6, 2016 at 13:57
  • it must be there, try to type 'assign' in the search box
    – C0DEPirate
    Commented May 6, 2016 at 13:59
  • Updated post with screenshot of available fields searching for "assign". Still nothing =(
    – Allen Mann
    Commented May 6, 2016 at 14:13
  • 1
    Strange, I am not very sure will it help or not, can you double check what is the label and API name of the field?
    – C0DEPirate
    Commented May 6, 2016 at 14:17
  • What @C0DEPirate suggests, please also see success.salesforce.com/ideaView?id=08730000000DfGAAA0 You must search for the API name, not the label. A known bug/feature. Commented May 9, 2016 at 7:53

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .