I started potty training my son at the age of 11 months when he started sitting in a place for some time. I personally started with poop training. He made some peculiar facial expressions when he wanted to poop and I just rushed him to the potty seat. Gradually by 14 months of age, he was fully potty trained. He would tell me when he wanted to poop. I would say poop training was a breeze as compared to pee training that came with its own peculiar problems.