Mapping an Attribute's Value to an Existing Attribute - Mapping an Attribute's Value to an Existing Attribute - You can configure an attribute to derive its value directly from an existing attribute by configuring the Existing Attribute mapping element. This existing attribute can be defined in another menu section or mapping. - Alfresco - OnBase - Other - Hyland Migrate - Other/Hyland-Migrate/7.0/Hyland-Migrate/Usage/Migrations/Configuring-a-Migration/Mappings/Configuring-Attribute-Mapping/Mapping-an-Attribute-s-Value-to-an-Existing-Attribute - 7.0 - 7.0

You can configure an attribute to derive its value directly from an existing attribute by configuring the Existing Attribute mapping element. This existing attribute can be defined in another menu section or mapping.

1. From the Mapping section, click the downward-facing arrow next to the selected attribute.
   The mapping panel is expanded, displaying the mapping element section with the plus button.
2. Click the plus button to create a new mapping element.
   
   A list of available mapping elements is displayed.
3. Select Existing Attribute.
   The Existing Attribute dialog box is displayed.
4. From the Existing Field drop-down list, select an existing attribute whose value will determine the value of the attribute you are configuring.
   For example, if you are configuring the DocTypeName attribute and there is the existing attribute DocType, then selecting DocType from the list ensures that the value of DocTypeName will match the value of DocType.

   Note: All fields entered in the Queue Populator Query field of the Queue menu item can be selected from this list.
5. Click OK.