A refurbishment order (IW81) differs from other order types in many ways:
1) The order is mostly created with respect to a material/spare (which may or may not be an equipment).
2) Split valuation is activated for the material.
3) Settlement is done to the material itself against which we are creating refurbishment order.
4) Provision of issuing as well as receiving the material wrt the order no. is there. Normal maintenance order only has provision for issuing the material wrt order no.
There is also a slight difference in how the actual cost is calculated in a refurbishment order. Below is the step by step procedure on how the cost is populated in a refubishment order.
a) Once you plan the order wrt material required and manhours required and release the order, you will get planned costs populated in the order.
b) After you issue the material to be refurbished and components required to refurbish the material along with confirming the operation, you will get actual costs populated in the system.
c) Now, when you receive the material against refurbishment order using IW8W, the actual cost again gets modifed. Below is the logic for this cost calcuation.
The current actual material cost is minus 436.01. The logic is that when we received the refurbished material using transaction IW8W, the cost in the material master for refurbished material (say valuation type C2) was 468.83.
The system calculates the actual material cost as 32.82 - 468.83 = -436.01
And the actual total cost of refurbishment is 100 - 436.01 = -336.01
It is this negative cost which would be settled to the material when we execute the settlement KO88.