Hello KARTHI,
- Please refer to this post first:Cost Flow Of Maintenance Orders.
- Then go through this discussion How does the flow of costs works in SAP PM? where RIYAZ MANER gives the basic costs of an Order.
- And you can get plenty of such discussions when you Google with string such as 'SAP Costing of PM Order'.
- There is nothing like Preventive or Breakdown for costing. Everything about cost concepts are relevant to all types of Orders.
Good luck
KJogeswaraRao