Actually, I want the oppposit to be "true".
if the variable is NOT null I want the command to run, if its null i DON'T want it to run.
I ran the workflow with what you you gave me (with the variable empty) and displayed the variable in the "green box" during the run and it displayed "NA". so it will run...
if I place a value on the variable it does not run.
so the question still remains....can a skip a command if a variable is null?