K.M.
is there a reward system in place for when he USES the potty CORRECTLY? For my son we have a sticker chart ... when he DOES something he gets one but if he does both he gets two... he has delays and communication is a problem along with sensory (does not always know he has to pee/poo) so if he TELLS us and then does what he said he needed to do he gets an extra one then for every 5 stickers he gets a mailbox treat and that is something like a cheap party favor type item that lasts for a day. Maybe if there was something in it for him since he does not care at this point it will help.