Subcontracting procedure material wise

Question

HELLO SAP GURU
Today i have implement SAP on TEXTILE industry.& has M-T-O (20)strategy &has 22 plant.
my problem is abt.subcontracting.
this has 4 production line.1 warping 2.sizing 3.weaving 4.QI
In 3rd prd.line has get subcontracting procedure.
But it has 21 vendor (21plant) has same type of machine only different has very speed(RPM)
For my sales order point of view. I use one day 2 machine, next day 5m/c.on next day 10machine
But every machine has different OWNER.ie.different vendor
so how to calculate efficiency of different machine
main problem is
HOW TO DEFINE SUBCONTRACTING PROCEDURE?
Give me detail abt supplying plant & receiving plant.
yogesh
sap pp

Answer 1

hi yogesh
check following line may you use it
step1:-
Subcontracting In SAP
Bel  ow are the steps of subcontracting:
1. For a production material (1001), one raw material (2001) is assigned.
2. Production process of 1001 is having four operations 10, 20, 30 and 40.
3. In this 10, 30, and 40 are internal operations and 20 is external operation (sub-contracting).
4. To address this, we created a dummy material (non-valuated) and named as 1001-20 (Finished product number + Operation to be performed).
5. This 1001-20 should form part of the component in BOM of 1001. That is BOM of 1001 will have components as raw material 2001 and this dummy material 1001-20. In routing, assign this dummy material 1001-20 to operation 20.
6. During BOM creation, you should remove costing relevancy for the item 1001-20.
7. In routing, operation 20 is created with a work center (which is external operation work center) with external operation control key.
8. In operation details, for external processing, assign the info record of external processing.
9. Info record of external processing has to be created for vendor with relevance to the operation to be performed externally with vendor. (We are using material group field in the external processing in routing operation).
10. When create production order with above set up, system will create Purcha Req for external operation. This has to be converted to purchase order.
11. Now, this dummy material should be kept as 5000 or 6000 in stock using 561. When Purchase order is raised, required quantity has to be moved to vendor using 541.  When we do goods receipt the stock with vendor shall come down. With this, we can monitor the material (with dummy material number) stock with vendor (please note we can see only quantity and not value) .
12. When we do GR for external purch order, we receive only the operation performed. (So, coversion cost to vendor shall be paid).
13. After ensuring GR is done, order confirmatin of operation 0020 has to be done. (here we capture the quanttiy and also the valuation of material in production order).
step_2
1.  Define all the materials in your plant (subcontracting and packaging etc).
2.  In the material master MRP 4 view there is one field in which you can mention that this material is not relevant to MRP planning, use this field for subcontracting material so that it will not be planned in MRP runs ( generally use this field for re-order point planning).
3.  In the BOM for the subcontracting material put the special procurement key as Subcontracting and do not keep relevance for costing.
4.  If you're using packaging material of your company and want to capture the cost of these materials in the subcontracting production order then put relevance for cost.
5.  Define alternate BOMs for each customer.
6.   Generally the routing will be the same but materials will change, define different prodcution versions for each alternate BOM and assign to the routing.
7.   Define the activite types for packing and mixing in the work center and assign them to the cost center, use these for your routing. 
8.  Whenever you recive a sub-contracting order, use the relevant production version depending on the customer.
In my place all the palnts belong to the same client in sap and they want to use the same material code in both plants, so I think my subcontracting scenario might be different from yours but it give you some ideas to go about it.