# Managing shared access to custom billing views outside of your organization
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**Note**  
Custom billing views use Amazon Resource Access Manager (Amazon RAM) for sharing. When you share a custom billing view, an Amazon resource share is automatically created. You can also directly modify the resource share from the Amazon RAM console. For more information about modifying the resource share in Amazon RAM, see [Update a resource share in Amazon RAM](https://docs.amazonaws.cn/ram/latest/userguide/working-with-sharing-update.html).

**To edit who can access a custom billing view outside of your organization**

1. Open the Billing and Cost Management console at [https://console.amazonaws.cn/costmanagement/](https://console.amazonaws.cn/costmanagement/).

1. In the navigation pane, choose **Cost Management Preferences**.

1. Choose the **Billing View** tab.

1. To access the sharing page, do one of the following:
   + Select the custom billing view whose sharing you want to update, choose **Actions**, and then choose **Edit external shares ** from the dropdown list.
   + Choose the name of the custom billing view whose sharing you want to update and, on the view details page, choose the **Sharing** tab. Next to **Share outside of your organization**, choose **Edit**.

1. Choose which account IDs should have access to the custom billing view.

1. Choose **Share**.

**Note**  
Amazon RAM also supports a single resource belonging to multiple resource shares. If a custom billing view belongs to multiple resource shares, you will see a drop-down within the Edit sharing page labeled Select a share listing all resource shares the currently selected custom billing view belongs to. By selecting a resource share, you will be able to modify which accounts should be included or excluded from the selected resource share.