Issue with currency changing at checkout

Shopify Discussion

Topic summary

Multiple merchants are experiencing an issue where customer-facing currency correctly displays in local currencies (CAD, EUR, AUD) on product and cart pages, but reverts to the store’s default currency (USD or EUR) at checkout when using Shopify Markets.

Key Technical Details:

  • Issue appears specifically related to Markets subfolder implementation (e.g., domain.com/en-ca)
  • One user confirmed subdomains (e.g., can.domain.com) work as expected
  • Problem may involve the cart_currency cookie not updating properly when switching Markets

Shopify’s Official Response:

  • Local currency checkout requires Shopify Payments to be enabled
  • Merchants must enable specific currencies (like CAD) within Shopify Payments settings
  • Support staff repeatedly directed users to contact live support for account-specific troubleshooting

Unresolved Issues:

  • Merchants using third-party payment providers (not eligible for Shopify Payments) have no clear solution
  • BUCKS app confirmed apps cannot modify checkout pages per Shopify restrictions
  • No official fix provided for the subfolder currency conversion problem
  • Multiple merchants report customer abandonment due to this issue
Summarized with AI on October 28. AI used: claude-sonnet-4-5-20250929.
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Hi @Emily_50

Thank you for reaching out. I have been redirected by Shopify to the BUCKS team. They have informed me that, according to Shopify policies, in order to perform currency conversions on the checkout page, it is necessary to enable Shopify markets. If you have enabled markets, Shopify will take care of the currency conversions on the checkout page. However, if you haven’t enabled markets, our app can still switch the currencies up to the cart page. It’s important to note that apps are restricted from making modifications on the checkout page. Please keep in mind that this is the default behavior of our app as per Shopify guidelines. I have heard that this is a common issue for individuals who are not eligible to use the Shopify payment Gateway.