# Customizing the Amazon Web Services access portal URL
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By default, you can access the Amazon Web Services access portal by using a URL that follows this format: `start.home.awsapps.cn/directory/d-{{xxxxxxxxxx}}`. You can customize the URL as follows: `start.home.awsapps.com.cn/directory/{{your_subdomain}}`.

**Important**  
 If you change the Amazon Web Services access portal URL, you cannot edit it later.

**To customize your URL**

1. Open the Amazon IAM Identity Center console at [https://console.amazonaws.cn/singlesignon/](https://console.amazonaws.cn/singlesignon/).

1. In the IAM Identity Center console, choose **Dashboard** in the navigation pane and locate the **Settings summary** section.

1. Choose the **Customize** button below your Amazon Web Services access portal URL.
**Note**  
If the **Customize** button doesn't display, it means that the Amazon Web Services access portal has already been customized. Customizing the Amazon Web Services access portal URL is a one-time operation that cannot be reversed.

1. Enter your desired subdomain name and choose **Save**.

You can now sign in to the Amazon Console through your Amazon Web Services access portal with your customized URL.