How Do I Connect Canadian Company with US Fulfillment ? Majority US customers

Topic summary

A Canadian small business owner is preparing to launch a Shopify store with US-based fulfillment and primarily US customers. They’re seeking guidance on three key operational questions:

Fulfillment Integration:

  • Integration apps exist but must be provided by the fulfillment center itself, not Shopify
  • If no app is available, use Shopify’s “Custom Fulfillment” feature, which automatically emails order details to the fulfillment center when orders are marked as fulfilled

Shipping Rate Setup:

  • Rates are configured in Shopify admin under Settings > Shipping
  • Options include: calculated rates from carriers (USPS, UPS) via “Shopify Shipping,” custom rates based on order cost/weight, or rates from personal carrier accounts
  • Detailed video tutorials are available in Shopify’s Help Center

Current Setup:
The business currently operates on a Canadian Shopify trial connected to a US Wise Business account with USD currency. The discussion remains open as the owner hasn’t yet contacted their fulfillment company directly for specific integration details.

Summarized with AI on November 9. AI used: claude-sonnet-4-5-20250929.

I am a Canadian corporation (small business) about to launch our Shopify store. My product fulfillment is US based. How does my store connect with theirs? How do I establish shipping rates? Is it automatic or do I have to input according to the fulfillment company shipping rates? Is there an integration app?

My present trial is CDN Shopify with US currency connected with US Wise Business account.

I will appreciate your assistance before questioning the fulfillment company directly.

Thanks,

1 Like

Hey there! Congrats on your soon to be launch of your business! These are great questions and I am happy to help with them.

Is there an integration app?

If you are referring to an integration app with your fulfillment center, that would be something that the fulfillment center would provide you with. Shopify does allow for these types of integration apps, but they are not built or managed by Shopify.

How does my store connect with theirs?

If they do not have an integration app to automatically sync the data, you will want to instead set up the fulfillment center as a “Custom Fulfillment”. This makes it so that when you mark an order as fulfilled in your admin an automated email is sent to the fulfillment center with the order details. They can then fulfill the order on your behalf.

How do I establish shipping rates? Is it automatic or do I have to input according to the fulfillment company shipping rates?

Shipping rates are set up in the admin under Settings > Shipping. You can use calculated rates from shipping carriers like USPS or UPS or you can setup your own shipping rates based on order cost or order weight. Using calculated rates for shipping carriers provided by Shopify is referred to as “Shopify Shipping”. If you have your own carrier accounts then you can set those up in your shipping settings as well to use your own custom rates. Our Help Center has very detailed breakdowns of this and I recommend checking out our support videos in these links to learn more:

Please let us know if you have any other questions about setting up your shipping.