THIS ERROR OCCURS IN SAP PS WHEN YOU TRY TO SIMULATE A PROJECT

SOLUTION FOR THIS ERROR :

DELETE THE SIMULATIONS FOR THAT ARE ALREADY EXIST FOR WBS ELEMENT AND PROJECT.

T CODE : CJEN IS HELPFUL TO DO THIS ACTIVITY

OR

CHECK WHETHER WBS ELMENT HAS BEEN RELEASED.

IF IT IS NOT RELEASED , RELEASE THE WBS ELEMENT AND SIMULATE WBS ELEMENT AGAIN.