My puppy is 6mos old and she poops in her crate. How do I stop this?

To better answer your question I need to get a bit more info if you don't mind :)

Has she been checked out by a vet to rule out any medical issues, what's her exercise routine like? What type of dog and where did you get her? Is she spayed? What size crate?

Our answers will vary depending on your answers to the above questions.