Changing of Raw Data and Error Handling 
In the monitor for revenue accounting items, you can do the following in case of error:
Manually change the contents of individual fields
Use mass change to manually change multiple field values for multiple items at the same time
You have specified which fields can be changed in Customizing for Revenue Accounting under . (In the standard system, you are not permitted to modify any fields.)
If you change values for a raw data item, the system updates the change history. In the change history, all item changes are listed chronologically.
To change billable items and resolve errors, choose transaction FARR_RAI_MON (Display of Revenue Accounting Items).
For more information, see the program documentation.