There's a possibility you're encountering this issue as you haven't activated the countries outside of the UK in theShopify Marketsarea in your admin. Besides adding them to theshipping zonesin your shipping profile, you need to activate the countries you ship to in theSettings > Marketspage to enable customers to select those countries at the checkout. You may head over to that page and check if the countries sayInactivesuch as in the screenshot below.
If they are inactive, you may clickManagebeside each country and clickActivate marketto activate it.
If it doesn't resolve the problem, it's best that we take a look at your checkout and settings to pinpoint the cause and advise a solution. We’re not able to provide account-specific support via the Shopify Community at this time, but we’d be happy to continue assisting you through live chat, email, or callback. Please visithttps://bit.ly/3cJkx8Vand log in to your account to create a support request.
Once the issue is fixed, consider localizing your website to attract international buyers. When you localize your website, you make it more accessible to locals in your international markets which will increase the likelihood of them placing orders and trusting your business. We have a guide on how to do thaton this pageso feel free to take note of the steps so you're able to localize your website whenever you're ready!
Summer | Social Care @ Shopify - Was my reply helpful? Click Like to let me know! - Was your question answered? Mark it as an Accepted Solution - To learn more visit the Shopify Help Center or the Shopify Blog