If you want to have a disciplined strategy around project cost controls (and in CO in general), then you'll want to make sure your budget and commitment values are correct. Similarly, you'll want to consistently repair your availability control values to ensure that your budget tolerances aren't being exceeded. Read...
The Best Way to Guarantee Accurate Project Reporting With CJEN (and RPSCO)
Reporting is a critical output of any ERP system yet few customers take the steps to ensure their project reports are accurate. How and why can this be handled easily in SAP Project Systems?