# Conceptual Product Structure

## How to Align internal and external Specifications

| ### What to do:
| To work through this example, you must first complete the examples Create Specification Categories and Create Specification.
| It is possible to import specifications supplied by the customer! Internal as well as external specifications will be shown in the Specification mask.
| Select Start > Bill of Materials > Specification. The Specification mask is opened.
| Search for Ornamental with the specification Wood. The Internal check box is selected because this is an internal specification.
| Select the External Specifications tab.
| To change to insert mode click .
| Click in the Specification field. The Specifications list is opened and shows all external specifications.
| Select Furnier from the Specification list.
| To save the entry click .