This section provides an overview of common error codes you may encounter when using nShift Checkout with Shopify. Each error code includes possible causes and what to check to resolve the issue.

X.1 Delivery options are not shown

Possible reasons:

• No valid rule matched the order
• Carrier service temporarily unavailable
• Incorrect Shopify connection settings

• Missing carrier contract in nShift’s Shipping Solution (Delivery, Ship, Transsmart)

   

X.2 Wrong prices in checkout

Check:

• Rule priority
• Price calculation logic
• Currency conversion per market, configured in Shopify
• Overlapping rules

X.3 Pickup points not loading

Ensure:

• The carrier supports pickup service
• Address fields are complete
• You have enabled pickup rules

X.4 “Rate provider returned no rates” error

Often caused by:

• Invalid weight/size combinations
• Carrier API downtime
• Invalid currency configuration: Shopify storefront’s default currency not matching the currency configured in nShift Checkout UI
• Missing mapping between Shopify and nShift Checkout configuration