Wrong shipping cost

Topic summary

A merchant in Korea reports a shipping configuration issue where domestic orders set at $2 are incorrectly displaying as $20 international shipping at checkout.

Troubleshooting steps suggested:

  • Package settings: Verify default package weight in Shopify admin (Settings > Shipping and Delivery > Packages), as excessive weight increases costs
  • Product weights: Confirm accurate weight entries for all products
  • Shipping profiles: Check that shipping zones properly cover intended regions without conflicts and rates align with pricing strategy
  • Third-party apps: Ensure any shipping/fulfillment apps aren’t overriding Shopify settings

The merchant also seeks recommendations for apps that automatically calculate shipping costs. A test checkout is recommended to identify the root cause of the rate discrepancy. The issue remains unresolved pending further investigation.

Summarized with AI on October 31. AI used: claude-sonnet-4-5-20250929.

I am in Korea and have set the domestic shipping fee at $2, but at checkout, it shows an international cost of $20. How can I change this?

Anyone could recommend an app that automatically calculates it?

Discrepancies in shipping rates can occur due to various factors. We have listed them below, along with instructions on how you can resolve this issue.

Review Package Settings: Check if the default package weight is set higher than expected, this can increase shipping costs. Here’s how to check:

Go to your Shopify admin panel > Settings > Shipping and Delivery> Packages, and verify the default package weight. Adjust it if necessary.

Ensure that any saved package dimensions and weights accurately reflect your actual packaging.

Check Product Weights: Confirm that each product’s weight is correctly entered in the product details.

Shipping Profiles and Rates:

Shipping Zones: Ensure that your shipping zones cover all the regions you ship to and there are no conflicts.

Review your shipping rates to see if it aligns with your pricing strategy.

Third-party apps: If you’re using any shipping or fulfillment apps, verify that they’re configured correctly and not overriding your Shopify settings.

To understand the problem better, perform a test checkout from your end and identify any hidden issues that are causing the shipping rate discrepancy.