# Cloning a schema mapping
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You can clone a schema mapping if you want to use an existing configuration to create a new schema mapping.

**To clone a schema mapping:**

1. Sign in to the AWS Management Console and open the AWS Entity Resolution console at [https://console.aws.amazon.com/entityresolution/](https://console.aws.amazon.com/entityresolution/).

1. In the left navigation pane, under **Data preparation**, choose **Schema mappings**.

1. Choose the schema mapping.

1. Choose **Clone**.

1. On the **Specify schema details** page, make any necessary changes and then choose **Next**.

1. On the **Choose matching technique** page, make any necessary changes and then choose **Next**.

1. On the **Map input fields** page, make any necessary changes and then choose **Next**.

1. On the **Group data** page, make any necessary changes and then choose **Next**.

1. On the **Review and save** page, make any necessary changes and then choose **Clone schema mapping**.