Customer directed parts issue

Question

Hi,
In one of our running implementations we have the following requirement.
We have A material a which the plant procures from vendor G and H that material a is used in let's say 2 finished goods X and Y. The customer for finished good X informs us that in his product material A needs to be procured from vendor H whereas customer Y does not impose this rule onto us.
So how does the ERP system react to this?
Example:
We receive the following orders from our customer:
Customer for finished good X orders 200 pcs
Customer for finished good Y orders 100 pcs
These requirements are entered into SAP and we then run to MRP.
The result of MRP will be a requirement for component A of 300 pcs.
If we use a source list together with a quota arrangement (quota split 50% to vendor G and 50% to vendor H), purchasing will order the following quantities of material A at vendor H and G:
     H : 150 pcs
     G : 150 pcs
This means that when we produce finished good X we have not enough components that are received from the customer directed vendor which will cause problems.
Typically having 2 different part numbers for the same material would solve this issue. However the engineering department says that if a material is the same in fit-form or function it can only have 1 material number.
Is there a way in purchasing that we can split these requirements so that the orders for the customer directed material go to the correct vendor?
Regards,
Peter

Answer 1

Hi Peter,
You get different customer orders for lets say FERT -ABC1 which has component A1 this component is required to be utilized for specific customer order and needs to be procured from a perticular vendor
You create customer order which is taken in MRP , set the Indv./coll requirement field in MRP4 view of the  material master of A1
In this case system will generate sales order specific purchase requiisition for different quantities
If you are using auto generation of PO using ME59 use user exit ME590001 to influence the source selection based on customer in the sales order updated in PR in account assignment tab
To manage and track inventory of same part from different vendors you can activate batch management at material level with manual assignment of batches, while back flush system will ask for batch in pull list based on the customer order for which the production order is created you can select the batch of A1, even in case of repititive manufacturing you have that option in pull list
Hope this will help you to take it ahead
Thanks
Diwakar