serious?

How is it that puppy can pee outside and not inside but talking the dang thing into pooping outside is almost impossible? Someone with some great plan please tell me what the trick is as I am about to make him stay in his kennel and cry it out and only let him out to pee and poop till he learns. The kids will hate it, he will hate it and so will I but I hate beyond words having to find surprises on my floor even more!