Hi,
Ok, if I choose the method of calc weighted cost while save transaction, it will cause certain records store a "incorrect" weighted cost. Of course, at last the weighted is correct since the edition of purchase for last will be will take impact on next transaction. (am I right?)

If I show w.cost according to the one stored in transaction record in stock ledger, you may see some "inccorect cost" if go thru each of the records shown. Does your customer accept it? If so, I will use this method else.....

Pls advise
Thank you