---
title: >-
  Shopify Flow: Action runtime URLs now update automatically - Shopify developer
  changelog
description: >-
  Shopify’s developer changelog documents all changes to Shopify’s platform.
  Find the latest news and learn about new platform opportunities.
source_url:
  html: >-
    https://shopify.dev/changelog/shopify-flow-action-runtime-urls-now-update-automatically
  md: >-
    https://shopify.dev/changelog/shopify-flow-action-runtime-urls-now-update-automatically.md
metadata:
  effectiveApiVersion: 2026-07
  affectedApi: []
  primaryTag:
    displayName: Tools
    handle: tools
  secondaryTag:
    displayName: Update
    handle: update
  indicatesActionRequired: false
  createdAt: '2026-06-26T14:56:00-04:00'
  postedAt: '2026-07-07T12:00:00-04:00'
  updatedAt: '2026-07-07T16:05:18-04:00'
  effectiveAt: '2026-07-08T12:00:00-04:00'
---

July 7, 2026

Tags:

* Tools
* 2026-07

# Shopify Flow: Action runtime URLs now update automatically

Shopify Flow now resolves an action’s `runtime_url` on every execution. When the `runtime_url` is changed and the app is redeployed, the new URL is automatically used by existing workflows the next time they run. Merchants no longer need to edit or re-save their workflows to use the updated URL.

During local development, when you use `shopify app dev`, the `runtime_url` is also updated automatically in any development shops that have workflows using the action. This mirrors the behavior in production.

## Why it’s changing

Previously, the `runtime_url` for a Shopify Flow action was hard-coded into the workflow at the time it was activated. As a result, changes to an extension’s `runtime_url` only took effect after a merchant reactivated (re-saved) the affected workflow. Because merchants might not do this frequently, existing workflows could continue calling an outdated `runtime_url`.

## What you need to do

No action is required. However, if you previously relied on an action’s `runtime_url` remaining fixed for a workflow until it was reactivated, be aware that updates now propagate to existing workflows automatically.

For more details, see [Create Flow action endpoints](https://shopify.dev/docs/apps/build/flow/actions/endpoints).