KSII doesn't recalculate activity rates

Hi,

I've taken the following steps in order to configure cost splitting through activity types:

• Configured transactions OKEQ and OKET
• Created an activity type in KL01
• Created a splitting structure in OKES, defining cost splitting to a certain group of cost element and an activity type
• Associated the cost centers to the splitting structure in OKEW
• Planned activity rates in t-code KP26

and, after real expenses posts...

• executed transaction KSS2 (and it seems to be ok. The activity type appears on the details screen, etc.)
• executed transaction KSII (as a test)

But, the real price isn't recalculated. The activity price planned (KP26) was:

Capacity: 176h - Unit.P $ 200,00.

Real posts were:

5h of activity (that generated posts of $ 1.000,00), and $ 5.500,00 of fixed costs in the period.

So, I'm trying to recalculate the activity rates in order to split the other $ 4.500,00 not alocated.

But, KSII doesn't update the activity rates. It keeps the planned values.

Is there any other configuration I'm forgetting?