How to configure a flow to change order shipping location after it's sent?

Topic summary

Goal: Use Shopify Flow to reassign an order’s fulfillment location (inventory/ship-from location) based on ZIP after it was auto-assigned (e.g., reroute orders with ZIP 00145 from SEDE1 to SEDE02 so the Admin shows SEDE02 as the shipping location).

Update/clarification: A reply states the shipping address can be changed via Flow, while the billing address likely cannot. It references a how-to using Flow’s “Send HTTP Request” action to update the order address (link provided). This guidance targets address changes, not fulfillment location reassignment.

Status: No confirmed method was provided to change the fulfillment/shipping location via Flow after assignment. The shared resource pertains to modifying the shipping address only.

Open questions:

  • Can Shopify Flow (possibly via Admin API and Send HTTP Request) update an order’s assigned fulfillment location post-creation?
  • Are there constraints or permissions preventing location reassignment compared to address changes?

Attachments/links: The linked community post is central for implementing shipping address updates via HTTP Request.

Summarized with AI on January 11. AI used: gpt-5.

Good morning,

I’m trying to change the location of an order via ZIP by forcing it with FLOW from one shipping location to another, does anyone know how to configure a flow so that AFTER the user has SENT the pre-assigned order to a shipping location the flow can have it changed to another shipping location with the ZIP in the flow?

EX: order from ZIP :00145 → auto-assigned from cart to SEDE1
FLOW that: from ZIP 00145 transform the shipping location in SEDE02 before the order sent in administration panel.

So I will have an order assigned to shipping location SEDE02 in administration order

Thank you

Correction: you can actually change the shipping address. I think it’s billing address you cannot change.

See this thread for how to do it with Send HTTP Request:

https://community.shopify.com/post/2337360