This sounds very weird but here it is.. Calleigh
was a poop eater when she was a pup. I tried everything to get her to stop. I would give her a treat when she didn't eat the poop. Now she never eats her poop. When we are outdoors, I'll ask her to go poop. If she is taking her old sweet time, I will say "go poop and you can have your poop treat." It works most of the time.
Good luck.