Assembly BOMs specify which components or resources are required to assemble the item that the assembly BOM represents. Assembly BOMs usually contain items but can also contain one or more resources that perform the assembly work. For more information, see Resource Usage Type.

Assembly BOMs can be multilevel, which means that a component on the assembly BOM can be an assembly item itself. This is specified with the Yes value in the Assembly BOM field on the assembly BOM line. Multilevel assembly BOMs can have special requirements in certain cases, such as availability, planning, and standard cost calculation. For more information about how multilevel manufacturing or assembly items are handled in planning, see How to: Run MPS and MRP. For more information about how to calculate an assembly item’s cost at all levels, see How to: Calculate the Standard Cost of Assembly BOMs.

When you enter the assembly item on an assembly order header, the assembly BOM components are automatically filled into the assembly order lines and are then ready to be consumed in the assembly process. For more information, see How to: Assemble Items.

There are two steps to creating an assembly BOM:

To create an assembly BOM

  1. In the Search box, enter Items, and then choose the related link.

  2. Create a new item. On the Home tab, in the New group, choose New. Fill in the required fields on the item card. For more information, see How to: Set Up Items.

  3. On the Navigate tab, in the Assembly/Production group, choose the Assembly button, and then choose Assembly BOM.

  4. To enter components in the assembly BOM, in the Type field, enter Item. In the No. field, select an item.

    Note
    If the component that you enter is an assembly item, then the Assembly BOM field contains Yes.

  5. To enter a resource in the assembly BOM, in the Type field, enter Resource. In the No. field, select a resource.

  6. Leave the Type field blank if you want to enter a text on the assembly line, such as to describe an item or an assembly step.

  7. In the Quantity per field, define how many units of the item or resource go into the assembly BOM.

  8. Choose the OK button.

Tip

See Also