LOL!
This is fairly common thing in puppies. I feel lucky that Mei Mei doesn't eat her poop. But my other two dogs (Pomeranian and Shih Tzu), both males, will eat their own and each others!!
It is rather disgusting, but sometimes they will outgrow it and sometimes they won't.
There are some products like Deter or Apple Bitter Spray you can use, but I havn't tried those as I am hoping my male dogs will outgrow it.
I am sure you will get several more responses because like I said, it is pretty common. There has to be more poop eaters around! LOL!