After pressing the "Bill of Materials" button under the "Production" tab of the product main board and then starting to create a new BOM, you can view the user-defined fields after saving the screen or you need to select an existing BOM by clicking on it.

The fields of the data set will be displayed in the " Definition" tab of the " Material-Based Information" screen, in the " User Defined Fields Based" section. The name of this section will change depending on the definition made to determine which type of user-defined fields it will be specific to. For example, for user-defined fields specific to product types, it will be displayed as " Product Type-Based User Defined Fields".

Please note that if you have defined Field Groups and grouped the Dataset with Grouped User Defined Fields during Dataset creation, the user defined fields will be shown under the same headings as "Field Groups".