| Structure of a multilevel BOM |  |
| The following example shows a multilevel bill of material.
Manufactured Item: Bicycle
Level | Position | Item | Description | Quantity
1 | 10 / 1 | B | Saddle | 1
1 | 20 / 1 | C | Frame | 1
1 | 30 / 1 | D | Wheel | 2
2 | 10 / 1 | E | Spokes | 35
2 | 20 / 1 | F | Hub | 1
A | Manufactured Item Bicycle
B | Purchased Part Saddle
C | Purchased Part Frame
D | Manufactured Part Wheel
E | Spokes
F | Hub
Manufactured item D (wheel) is a phantom item. Related topics Structure of a summarized BOM Structure of a single-level BOM |