It is indeed possible to block USA or any other country from viewing your store.
We do not currently have a built in feature that allows you to do this, but with the help of the Locksmith App you are able to block visitors based on may different factors, as broad as the country they are viewing from, or as specific as an IP address. This app is trusted and loved by the community, and if you scroll down to the bottom of the listing you will see that the reviews speak for themselves!
The above app does come with a 15 day free trial, but then it has an app subscription at $9/month. Because of this, I wanted to clarify - why are you looking to block the USA specifically? Please do tell me a little more about this, for example did you perhaps have issues with shipping rates for that country? Any details you can provide will be helpful and I will see if we can find a different solution for you that does not involve getting an app.
Lastly, regarding your concern about issues with processing payments - could you please let me know what payment gateway you're using? It should not interfere at all, but if you let me know what gateway you use I can double check everything for you anyway.
Aside from all this, please let me know if you have any other questions!
Connect your PayPal account to allow your customers to checkout using the PayPal gateway a...By Ollie Jul 28, 2022