According to my salesforce case 01903104 to correct IR in PO 4511841623 and the correction had been done after investigated on October 2013
Moreover,this point is raised to audit committees on external audit report for Q3/2013.
However, I still found the same error was occurred in October for PO 4511854381 & 4511841852.
I had requested 3S-AP to correct IR in these PO and asked production people to reverse GI (goods issue) and make a new transaction after 3S-AP adjusted.
and production cost was re-run again by 3S-CTB
So,It is important to avoid this problem in the future, could you make a preventive action during the month before closing ?
You can find story from my excel file attached.
Thank you for your feedback.