I know from the fact that materials should be valuated accordingly coz once transactions occured, it's now hard to change it for a reason that you will consider subsequent documents. My question is to how to correct previous accounting entries if the material is not valuated correctly like i had a case wherein certain material was valuated as spare parts inventory where supposedly it's a raw materials inventory. I was trying to correct using F-02 but there was an error saying inventory account can only be posted internally in a company code. Is there any way i can correct the history or should i leave it as is??