Normally my cat uses her litterbox. The only problem I have is when I clean it. She refuses to poop in a clean litterbox. When I had multiple cats and multiple litterboxes this wasn't an issue, there was always a dirty one for her to use.
She is now my only cat and has a single litterbox (small apartment). The first time she poops after I clean the litterbox (on the floor), I throw her poop into the box and she will use it after that. If I leave some fresh poop in her litterbox when I clean it, she will also continue to use it. Old poop does not work.
We are moving in with someone that is not looking forward to the smell of a litterbox. They proposed scooping the litterbox several times a day to keep it clean. Problem is, if I don't leave poop in it my cat won't use it. If I do leave poop in it then it will smell.
How do I get my cat to poop in a clean litterbox?