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.

The following example shows a Where - Used multilevel bill of material.

Item: Spoke
Item level	Spoke Manufactured Item	Position	Description	Quantity
1	B1	20/1	Front Wheel	30
.2	M1	30/1	Men's City Bike	60
.2	M2	60/1	Tandem Tour Ladies	60
.2	M3	70/1	Tandem Tour Men	60
.2	M4	60/1	Tandem Tour Family	60
1	B2	20/1	Rear Wheel	30
.2	M1	30/1	Men's City Bike	60
.2	M2	60/1	Tandem Tour Ladies	60
.2	M3	70/1	Tandem Tour Men	60
.2	M4	60/1	Tandem Tour Family	60

[...]

A	Purchased Part Spoke
B1	Front wheel
B2	Rear wheel
M1	Manufactured item City Bike
M2	Manufactured item Tandem Tour Ladies
M3	Manufactured item Tandem Tour Men
M4	Manufactured item Tandem Tour Family

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