Hi,
While confirming the order ( Actual hours multiplied with Planned price).
Objective is ( (Actual hours to be multiplied with actual price)
This will be possible with the Revaluation of the Order with actual prices (CON2 ) before that you need to calculate the actual activity price by using KSII. After KSII, check the results in KSBT. Actual price will be update in addition to planned price which you have maintained in KP26.
Conclusion: you should not change the activity price in KP26, that will effect the planned price.
By completing co month end process you will get the desired results. ( Actual cost splitting, Actual activity price calculation and re-valuation of the order).
Regards,
Pavan Kumar Arvapally