Potty training help

MA

My son is 2years old 29 months to be exact. We did the 3 day potty training and it work wonderfully with pee. He will pee in the potty every time, while playing he will stop and go to the bathroom on his own our problem is pooping he absolutely will not poop on the potty on his own. Sometimes we will see the signs of him getting ready to poop and we will rush him to the potty and he will go, he hates being in a pooping pull up or underwear.

Does anyone have any advice on how to help him want to poop on the potty. We have tried rewarding him, praising him, all different things... 😩