HI
A bill of material (BOM) describes the different components that together create a product. A BOM for a bicycle, for example, consists of all the parts that make up the bicycle: the frame, the saddle, wheels, and so on.
Process Flow
When you enter the material number of a bill of materials that is relevant for sales order processing, the system displays the material that describes the whole bill of materials as a main item. The individual components are displayed as lower-level items.
There are two ways to process a bill of materials in Sales. Once you have entered a bill of material in a sales order, the system runs pricing, inventory control, and delivery processing at:
- Main item level if the material is assembled, or
- Component level if the material is not assembled
The type of processing used by the system is determined by the item category group that you enter in the material master record for relevant materials.
Processing at Main Item Level
If you want the system to carry out pricing, inventory control, and delivery processing at main item level, enter ERLA in the Item category group field of the Sales: sales org. 2 screen in the material master record of the finished product. This means that the components only function as text items and are not relevant for delivery. The following graphic shows how a bill of material is processed at main item level.
Processing at Component Level
If you want the system to carry out pricing, inventory control, and delivery processing at the component level, enter LUMF in the Item category group field of the Sales: sales org. 2 screen in the material master record of the finished product. In this case, only the components are relevant for delivery. During processing the system automatically creates a delivery group. The latest delivery date among all the components becomes the delivery date for the entire delivery group.
Once you enter a material (for whch you have created a BOM thru CS01) in the sales doc another material pops under the main material line item as a sub-item (s). If it doesn't then your BOM isn't working.
In my experience BOMs work if all maintenance has been done properly.
A number of things to check is:
1. The bom hasn't been defined for the plant used, or you haven't defined the plant in SO.
2. Main item category - has BOM application SD01 been assigned to it?
3. Item categories for main items and sub-items have not been mainteined properly.
4. Sales items maintenance - You should assign item categories for BOM header items and sub-items to a specific sales doc.
5. Has the BOM itself been configured properly (i.e. right plant, BOM usage '5')?
6. Are you trying it out on an order created after all BOM maintenance was done?
7. Also , what's the 'Structure scope' set as? Anything except C may be useful here? We have that set to A, since our BOMs are all single-level. You could set it to B if BOM are configured multi-level.
Those are probably main reasons why BOM shouldn't work. Apart from that, just re-check your whole config - the truth is out there somwhere.
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
http://help.sap.com/saphelp_470/helpdata/en/41/c18342350411d3b460006094b9d648/frameset.htm
Message was edited by:
SHESAGIRI.G
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