Hi Anton,
I'd like to confirm if I fully understand your scenario.
My understanding is:
1. You calculate Cost Component Split for activities in KSII.
2. Your cost component split is based on primary cost elements. Is this correct?
3. You settle internal orders to cost centres which are activity senders (activity prices are calculated for those cost centres).
4. You settle internal orders with one settlement cost element (cost element category 21). Is this correct?
5. In KSII you'd like to retain the information of the primary cost elements posted to internal order and calculate activity prices on settlement receiving cost centres accordingly.
Your reply to each question will help us to understand your scenario.
Regards,
Szymon