Hi..
You should pay special attention to delete standard cost.
If not, you will meet inconsistence problem.
Nevertheless, if you want to delete std cost for material where the overhead key is not
attached , Refer to below procedure.
1.You get the materialswhere the overhead key is not attached using MBEW table.
2.You check whether MM documents related to materials which were fetched using procedure 1 were occurred. If so, you shoud reverse MM document to avoid inconsistence problem.
3.You delete std cost using t-code CKR1.
4. You re-calculate and mark STD cost.
5. If you use material ledger, before release std cost, you should change ML status into
“Period Opened” using the program supplied by Note 574930.
If you don’t use material ledger, you release std cost.