Order BOM 

Definition

A bill of material, which is generated from a material BOM and is modified for a specific sales order. The material BOM, however, does not change.

An order BOM is generated when a material BOM is changed for a specific order.

Use

You use an order BOM if you want to change the bill of material for a material, to meet the requirements of a single sales order. Since the changes only affect this one sales order, you do not want to change the material BOM. However, you do not want to maintain any new material master records either.

For example, as a make-to-order manufacturer, you supply complex products with numerous variants. To do this, you use variant configuration in the SAP System. However, since each customer has different requirements, you cannot plan all product variants in advance. In these cases, you generate order BOMs in variant configuration. You can then modify these order BOMs to completely fulfill the customers’ product requirements.

Structure

An order BOM has the same structure as the material BOM from which it is generated.

A BOM that is created with reference to a specific sales order is described as an order BOM. A sales order number, a sales order item and a material number uniquely identify an order BOM .

Both material BOMs and order BOMs can be contained in the multi-level BOM for the material that you entered in a sales order item.

Example

You have entered material A in a sales order item. The BOM for material A contains components B and C, which are themselves assemblies.

The bill of material for material C is extended for a specific sales order with component H (see graphic). An order BOM is generated from material BOM C.

Creating an Order BOM