What is BOM(Bill Of Material) In Material Management(MM)

Question

Hi,
i am part of Data Migration Project involving SAP And Peoplesoft Systems. We are doing Data Mapping Activity SAP as Target System And PeopleSoft as source system Now we are continuing with BOM (Bill Of Material) in MM Module. I have few doubts regarding Functionality of BOM Any one please Explain me what is Bill Of Material And What kind of Things it Deals WIth. Who Bills for the Material. Explain me some basic Things Abt BOM as i am a Technical Consultant i am totally Unaware of the Functionality Thanks in Advance.
Thanks
kiran.B

Answer 1

Hi ,
      Bill of material (BOM)
A list of all of the items that make up a product or assembly. The list has a formal structure and states the name, quantity, and unit of measure for each component. A comprehensive product life-cycle management solution should offer support for the following categories of BOM: feature and requirements structures, material BOM, document structures, equipment BOM, functional location BOM, sales order BOM, and work breakdown structure BOM. 
Defining Bill of Materials
Use
Use the procedure to add and view Bill of Materials.
Procedure
       1.      Choose Production ® Bill of Materials.
       2.      On the Product No. field, press TAB to choose the item, which you want to define as a parent item, from the list of the Item Master records. You can also choose New on Choose from List to create a new master record.
If the parent item already has a Bill of Materials, the components are displayed. However, you can still create a new Bill of Materials for that parent item.
       3.      Select the relevant BOM type from the list as described in Bill of Materials Types.
Choose the Production type to be able to include the product in the MRP run and to process standard production orders.
       4.      Enter data for the finished product and the components. For details, see Bill of Materials Window.
If the BOM contains more than one component with the same serial or batch items; combine the items in a single component with the appropriate increased quantity. This will prevent possible errors in the batch or serial quantities.
       5.      Choose Add to save the Bill of Materials.
       6.      Choose OK.
Sometimes production gives rise to waste. If, for example, you manufacture the table, this process gives rise to sawdust.
You add sawdust as an additional component (by product). Enter a negative value in the Quantity field of the sawdust component.
When you complete and confirm the production of the desk, this component is put into stock. On the contrary, the rest of the components are removed from stock when you complete and confirm production.
Please reward if useful.