Delete cost element in KP06 planning

Dear all,

I am facing the issue in cost run:

Our scenario is like below we done cost element planning for cost center activity type cost element combination(kp06) due to mistake user defined the cost element which is not relevant for activity price calculation after that i run the plan price calculation(KSPI) here i found the warning message "Cost element is not assigned to cost component structure, if i will ignore this message my cost component view and itemization view won't match. So i deleted the cost element value from KP06 , but when i execute the kspi same message is appeating.

1) Please advise me how to delete the cost element from kp06 resulting it wont appear in kspi.

Regards,

Ravi.