ST-2026-065 · Runtimes & developer platforms
Shopify Flow action runtime URLs propagate automatically
Flow resolves an action runtime_url on every execution, so redeployed endpoint changes apply to existing merchant workflows without re-saving them.
Shopify Flowruntime_urlaction extensionsdeployment
Previous state
Existing workflow configurations could retain the endpoint associated with their saved version.
Current state
Every execution resolves the currently deployed runtime_url and automatically propagates endpoint changes.
Affected users
Who needs to care
Shopify Flow action extensions with changing partner endpoints.
Required response
What to do
Treat endpoint deployment as affecting existing workflows and validate backward-compatible request handling.
Evidence boundary
What the source does not prove
The change updates runtime URL resolution; it does not rewrite unrelated workflow configuration.
Lifecycle history
Dated event sequence
- Runtime resolution changed
Current deployed action URLs began applying to existing workflows.
Evidence ledger
First-party sources
- 01Shopify Developer Changelog — Shopify Flow action runtime URLs now update automatically
Official developer changelog · 2026-07-07
Open official source ↗