Help apply Boolean please?

Hi All,
I was reading this

It states that my modifier must be added in object mode, with a face to work.
I created a circle added a face. Named it Circle I have a plane named it beam. I added the modifier to my circle to cut a circle out of my target beam. I am not getting a result. What am I not doing?


Ok maybe that is it… I will give both a whirl

I got it… It was funny for some reason I had to move the objects to cut onto another layer to do so.
I did have it backwards as to the Target as well.

In my case the Boolean modifier needed to be applied to my Beam and then my target was my sphere using the difference option. FWIW (if this comes up on a boolean search) Thought to straighten out the thread. My question above had it backwards Target and modifier.