> For the complete documentation index, see [llms.txt](https://docs.tryterra.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tryterra.co/faq/help-topics/connecting/apple-health-health-connect-and-mobile-sdk/apple-deeplink-invalid-link-error.md).

# Why does Apple Health show an invalid link error?

An **invalid link** error when connecting Apple Health usually means the app's **deep-link setup** is incorrect or unhandled.

To resolve it:

* **Verify the deep link** registered for your app.
* Check that the redirect URLs passed when generating the widget session **match what the app actually handles**.

See the [iOS SDK reference](https://docs.tryterra.co/reference/health-and-fitness-api/sdk-references/ios-swift) for deep-link configuration.