NULL check in Workflow Condition

Hello, this is my first thread because I can't find any result in old discussions. I need to make a check in a workflow condition to test if a filed (workspace) is null. 
I set this: GV_WF__MYFIELD = NULL and the validation doesn't signal anything. 

Is it correct?
Thank you in advance
 

Hi Mirco,&nbsp;<br> <br> DocuWare uses VBA Syntax here. You might want to compare with nothing, or use the ISNULL() function.&nbsp;<br> <br> https://docs.microsoft.com/en-us/office/vba/language/reference/user-interface-help/isnull-function<br> <br> Hope this helps.<br> Greetings from Germany,<br> Simon H. Hellmann<br> DocuWare System Consultant

Yes, it works<br> <br> <em><strong>ISNULL(GV_WF_MYFIELD)&nbsp;</strong></em><br> <br> Thank you!

and for some strange reason GV = NOTHING works too