Setting Up Domestic Shipping for Specific Partners or Products
If you only want to apply domestic shipping rules to certain supplier products, follow these steps in Shopify:
In your Shopify Admin, go to Settings > Shipping and Delivery.
Click Create new profile.
Enter a Name for the new shipping profile.
Click Add products.
Select the product(s) you want included in this profile, then click Done.
Scroll to the Shipping origins section and click Create zone.
Name the zone.
Search for United States.
Uncheck Territories and any non-states, then click Done.
Click Add rate.
Enter a Rate Name, then set the appropriate Price for shipping. Click Done.
Note: Shopify’s rules for naming shipping rates still apply. For details, see Shopify’s documentation.
Click "Save".
To test, add one of the products to your cart and confirm that the correct domestic shipping is applied at checkout.