This is something I would have said back in April. My daughter turned three in February.
In October we started potty training her. She was a little over 2 1/2. The peeing went great and quick. However, like your daughter she would not poo on the potty.
Since I knew her schedule, at about 4:30p.m., I would put a diaper on her until she pooped. I was sooo sick of cleaning poop from panties.
Then in April , she was 3 years and two months. I finally came up with a plan. She has had a stuffed doggie that she has had since 18 months old. She loves this doggie. One night after pooping in her panties, I told her that I was going to take the doggie and put it in my room (in her sight but too high for her to reach) until she went poop on the potty.
The very next day and every day since she has gone poop on the potty. Needless to say when she pooped the next day, I gave her the doggie back. However, I told her if she pooped in her pants again I would take them again.
This might sound mean, but it worked and I have not had to take them again.
Hope this helps. Good Luck! I know it seems like a real pain, but she will get it.