These are the condition type that will display the results of the unit costing for certain  type of sales document. 

EK01 : 
If you use this condition type, the result of unit costing is issued to the first position on the conditions screen for the item. The value can be used as a basis for price determination. 

EK02: 
If you use this condition type, the result of unit costing is simply a statistical value which you can compare with the price. 

Please note the following points  :

1) The condition type must have condition category ‘Q’ (costing). 

2) The condition type must agree with the condition type defined for unit costing in the pricing procedure.