How to maintain alternative material in a BOM for a component.

Question

how to maintain alternative material in a BOM for a component.if stock for existing bom component is less then it should consider other alternative material in the same BOM

Answer 1

HI,
You can maintain alternate material for BOM Component by specifying Alternate Item group as below;
Go to CS03/CS02--> Items-> Select Component and go to details->Basic Data Tab--> General Data
Pls. find more details about Alternate Item group maintainance as below:
Alternative item: group
Consolidation of alternative items within a BOM. Every material in the assembly can be included in the alternative item group.
Use
As soon as you enter an alternative item group, you see an additional dialog box with the following data: ranking order, strategy, usage probability.
You can maintain alternative items in the following situations:
Alternative positions with specific usage probability
These alternative items are incorporated with a specific usage probability. Enter the usage probability for each alternative item in the group, so that:
dependent requirements are determined in requirements planning
dependent requirements are changed to a reservation in the production order
Alternative positions as information
You can enter an alternative item for information purposes. This item would then, for example, only be taken into account in situations involving missing parts.
As there should be neither dependent requirements nor a reservation for this item, enter no usage probability.
Procedure
Enter the same character string to denote the alternative items of an alternative item group.
Enter the same strategy for all alternative items in the alternative item group.
Dependencies
Alternative items are valuated in the following way:
Dependent requirements determination
Requirements planning determines the dependent requirements according to the usage probabilities that have been entered.
If the usage probability is 0%, then no procurement is planned for the item. For information purposes, however, dependent requirements with 0 as quantity are created.
Withdrawal posting
You can control the withdrawal posting for the resevation in the production order in the following way:
Withdrawal according to usage probability (manual change is possible)
Withdrawal if there is 100% availability
(Check ranking order and strategy)
Example: See Strategy for alternative position
Further you can also maintain alternate material if you want to stop using this material at certain time as below:
In material master of the material ,
Go to MRP-4 View----> Under Discongtinued parts specify
Discontinuation Indicator
Eff-out.
Follow-up matl
So system will automatically consider follow up material in BOM as per the settings you have maintained for the material to be replaced.
Hope this helps.
Regards,
Tejas