Revaluation at actual prices

Hi,

Does anybody know what all configuraion is needed for revaluation at actual price (MFN1/CON2)?

I did planning in KP26 and prepared production orders where prices for the activites are picked for KP26. Now I have run KSII to calculate the actual prices. Now, when I am running the revaluation at actual prices, system is not picking any value...output is blank....

I didn't find any config on this...Is there any dependent setting which I am missing....

Thanks in advance,

Mayank