> For the complete documentation index, see [llms.txt](https://docs.aohwv.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.aohwv.dev/getting-started/06-redirect-uri.md).

# Step 5 — Redirect URI

The final configuration step is to add the OAuth redirect URI to your App Registration. This tells Entra ID where to send users after they authenticate.

{% stepper %}
{% step %}
**Open your App Registration**

In the [Azure Portal](https://portal.azure.com), navigate to **Microsoft Entra ID** → **App registrations** and select the registration you created in [Step 1](/getting-started/02-app-registration.md).
{% endstep %}

{% step %}
**Add the redirect URI**

1. Go to **Authentication** → **Add a platform** → **Web**.
2. Set the redirect URI to:

```
https://<your-domain>/auth/callback
```

Replace `<your-domain>` with the subdomain you configured in [Step 3](/getting-started/04-dns.md) — for example, `https://sync.yourcompany.com/auth/callback`.

3. Click **Save**.
   {% endstep %}
   {% endstepper %}

{% hint style="success" %}
AOH Sync is now fully configured. Open `https://<your-domain>` in your browser to sign in for the first time.
{% endhint %}

## How to check it worked

The redirect URI appears in your App Registration's **Authentication** page under **Web** → **Redirect URIs**, and you can sign in to AOH Sync at `https://<your-domain>` without an authentication error.

## Related

* [Step 4 — First Login](/getting-started/05-first-login.md)
* [Step 9 — Run Your First Sync](/getting-started/10-first-sync.md)
* [Managing Your Instance](/getting-started/11-managing-your-instance.md)


---

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