As mentioned above, settlement is to post the cost to cost centers or any possible receivers as per the settlement profile. PM / Service orders, WBS elements, etc., can be temporary cost bearers from which cost should be settled to some permanent receivers.
Cost elements / Cost element groups should be available as Master data before configuring settlement profile.
To answer your latest query, there are 2 type of cost centers.
- Sender Cost Center - Against this, labor / internal activity price will be maintained in KP26. This cost center will be maintained in PM / PP work centers. While creating PM / PP orders, one of the work centers & activity types will be mentioned. Based on the KP26 entry for the combination of Activity type & Sender cost center, price will be picked & calculated according to work hours / labor hours maintained in PM / PP orders.
- Receiver Cost Center - Receiver cost center is the department / location cost center to which cost should be settled. Only receiver cost center will be maintained in settlement profile. Sender cost centers will be picked up automatically from work center.