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## App Extensions scope and automatic deletion on uninstall

Clarified how App Extensions relate to the app that creates them and what happens to them when an app is uninstalled.

* **App ownership and scope** — App Extensions are dual-scoped: each one is owned by the app registration that created it (through the app's OAuth `client_id`) and stored independently in each store's database. Only the owning API account can manage an app's App Extensions.
* **Automatic deletion on app uninstall** — BigCommerce automatically deletes a store's App Extensions when the owning app is uninstalled, so no manual cleanup is required.
* **Uninstall callback guidance** — The `/uninstall` callback is for cleanup within your own app; platform-registered resources such as webhooks and App Extensions are removed automatically and don't need manual deletion.

For details, see the [App Extensions overview](/developer/docs/integrations/apps/app-extensions/overview) and [Single-Click App Callback Handlers](/developer/docs/integrations/apps/guide/handling-callbacks#deactivate-stores-with-uninstall).