Selected Row(s) May Contain Line Item Data and Cannot be Deleted Error When Attempting to Delete WBS

Dear All,

We have Non-WF Cost Type Business process where user select the cost code and enter the amount. On the upper form user assign the record status as "Active"(Which is not terminal status) and clicks on Finish Editing.  Later the user open the same record to remove the Line Items from Business process as its not required and complete the action by clicking "Finish Editing".

Since the Cost code is no more useful, now when we try to remove the Cost code from cost sheet. we are getting alert message "Selected Row(s) May Contain Line Item Data and Cannot be Deleted Error When Attempting to Delete WBS Code"