Potty training progress

We aren't potty training but do identify pee and poop when he goes. I also have a potty he sits on both clothed and nakked. Today he yelled poop. So i ran to change him and no poop. He didn't want to sit on the potty so I let it be and a few minutes later he pooped in his diaper. But thats so awesome he identified it before going. Thats progress.