Shopify Checkout supports a consistent shopping experience across devices, starting from mobile and adapting for larger screens. With more than 50% of ecommerce traffic coming from mobile devices, it's more important than ever for your checkout to look great on all screen sizes.
Google Analytics goal and funnel tracking
If you're using Google Analytics' goal and funnel features, you must update your conversion goals configurations to work with responsive checkout. In most cases, replacing
/checkout/thank_you in your Goal detail settings (in Google Analytics) will solve any conversion issue you might experience.