SharePoint Stack Exchange is a question and answer site for SharePoint enthusiasts. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

everything is in the title.

I have a lookup field set to optional and I need from my Workflow to test this field.

When you do not select any value, you have (none) in the interface but I cannot seem to be able to test it in the workflow

I have tried is empty but it does not work.

share|improve this question
Strange. I just tested it with Is CurrentItem:LookUp is empty and it works (LookUp is name of my lookup field) – Vedran Rasol Sep 8 '11 at 20:14
indeed the is empty works, I retest it again and it worked. Publishing issue I Guess thx anyway – SPointer Sep 9 '11 at 12:41
Good. I posted my comment as answer so you can mark it as answer if you think it was helpful. – Vedran Rasol Sep 9 '11 at 12:46

I just tested it with Is CurrentItem:LookUp is empty and it works.

Note: LookUp is name of my test lookup field

share|improve this answer
No, I face same problem, Is CurrentItem:Lookup is empty does not work with me too!!! – user9208 Jun 29 '12 at 17:39
Same here, I don't seem to get a consistent behavior with CurrentItem:Lookup is empty – Christophe Mar 30 '13 at 23:01

The string value of a an empty lookup column is actualy "0;#". You need to test if the column is equal to this value.

share|improve this answer

If the lookup allows multiple values you can check if it is equal to {"results":null}, which is the JSON string that will be returned when the field is empty (for SharePoint 2013 at least).

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.