Joint Production and Split Valuation 
Use
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The following features of joint production and split valuation require particular attention:
The system checks first to see whether joint production applies to the material entered. If it does, a dialog box appears, in which you can enter the process material. If you do not enter a process material, or joint production does not apply to the material, you cannot make any entries for joint production.
If you enter a process material, you can create a procurement alternative for joint production. If you create the procurement alternative through the BOM/routing (that is, the quantity structure of the process material, not the co-product), you must enter an apportionment structure. You define apportionment structures in the material master.
Note
If you create the apportionment structure through a production version, the apportionment structure is transferred from the production version. If no apportionment structure has been specified in the production version, you cannot create the procurement alternative.
Instead of the lot size of the process material, you enter the procurement quantity of the co-product. The system converts this procurement quantity to the production lot size of the process material.
Note
If this is not possible, you cannot create the procurement alternative.
A joint production process can consist of one process material and several co-products. These co-products all have their own material masters, but they are all based on the same process material and the same production process. You can create a separate procurement alternative for each co-product. A process can have several procurement alternatives and only one lot size and one apportionment structure. If you then create or change a procurement alternative, the system establishes that the process already exists. In such cases, you are asked whether the new lot size or apportionment structure should be transferred into the process. This transfer affects all the other procurement alternatives.
The same situation applies if more than one valuation type (such as EIGEN, FREMD, and so on) exist for one material: the lot size is always linked to the process. The process is created without a valuation type. There is only one lot size for procurement alternatives with the same material and master data, but different valuation types.
See also: