I rescued a dog from the shelter and she won’t go to potty outside !?

I rescued a 4 year old dog from the shelter and she refuses to potty outside, she only does her business inside the house. She enjoys being outside and sniffing but never does her business out there, even though I take her outside very frequently. I was wondering if anyone had any tips to try to get her to potty... show more I rescued a 4 year old dog from the shelter and she refuses to potty outside, she only does her business inside the house. She enjoys being outside and sniffing but never does her business out there, even though I take her outside very frequently. I was wondering if anyone had any tips to try to get her to potty outside so this doesn’t become a habit. Thanks !
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