Why does the 'address validation' error message appear at checkout?

Why are our customers receiving this message at check out?

This order can’t be shipped to the address entered. Review your address to ensure that all fields have been entered correctly and try again.

I went on the website and entered some addresses. Some worked and others didn’t.

Thank you

Hi, @dmsuter .

Thank you for reaching out!

Have you noticed this is happening in specific countries or states? When that message shows in checkout it most likely means you do not have shipping rates set up for that address.

Please let me know if you have any further questions! I would love to learn more about your business. What type of products do you sell?

Talk soon,