Use
Before you can post actual costs to the WBS elements you have to set the system status Released.
Procedure
In the work area on the Basic Data tab page the system displays the system status REL Released. By releasing the project definition you also release all of the subordinate project elements.
Result
All project elements have been released and you can begin with the implementation of the project. You use the Execution Services for this purpose.
Carrying out Execution Services